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        Dear customers, hello! In this ever-changing era of electrical appliances, we are well aware of your high expectations for electrical products. Today, I am honored to introduce to you a core component that leads the innovation peak in the electrical field - the high-frequency transformer.       In the modern electrical appliance industry, high-frequency transformers have become an indispensable key component. With its unique technical advantages, it plays a crucial role in numerous electrical appliances. Its core value is mainly reflected in the following aspects:       1. Outstanding performance. The high-frequency transformer utilizes advanced magnetic core materials and winding techniques, achieving higher power density and a smaller volume. This enables it to operate with greater efficiency and stability under high-frequency conditions, providing superior electrical performance for modern electrical appliances.        II. Widespread application fields. High-frequency transformers are widely used in electronic devices, communication equipment, computers, automotive electronics, and other fields. Whether it is smart home appliances, data centers, or industrial automation, high-frequency transformers can perform outstandingly and meet the requirements of various electrical products.      III. Innovative technical advantages. High-frequency transformers have achieved numerous breakthroughs in technology. By employing advanced production processes and quality control methods, the reliability and durability of the products have been ensured. Additionally, its flexible magnetic circuit design and various specifications of windings enable high-frequency transformers to meet the customized requirements of different electrical appliances.       IV. Reasons for Choosing the Ideal Product. In the electrical products market, high-frequency transformers stand out due to their outstanding performance, wide range of applications, and innovative technological advantages. Whether you are seeking high efficiency, stability, or reliability, high-frequency transformers can meet your needs and bring outstanding competitiveness to your electrical products.      In conclusion, high-frequency transformers are one of the core technologies in the field of electrical appliances. With their outstanding performance, wide range of applications, and innovative technical advantages, they have become the ideal choice for modern electrical appliances. If you have higher expectations for your electrical products, then high-frequency transformers will be an option you cannot miss!

Introduction to Low-Frequency Transformers       In the power system, low-frequency transformers are an indispensable component. They can achieve voltage regulation and provide stable power support for various devices. Today, we will discuss some common questions about low-frequency transformers to help you better understand and utilize this technology.    Common Question 1: What is the working principle of a low-frequency transformer?       The working principle of a low-frequency transformer is actually quite simple. In essence, it converts the input voltage into the desired output voltage through electromagnetic induction. The coils inside the transformer interact through magnetic fields to transfer energy. Isn't that fascinating?  Common Question 2: How to select the appropriate low-frequency transformer?      When choosing a low-frequency transformer, several key factors need to be considered: first is the power requirement, second is the voltage level and frequency. Additionally, the efficiency and loss of the transformer should not be overlooked. It is recommended that you consult professionals when making the selection to ensure you choose the most suitable product.    Common Question 3: What should be noted when maintaining low-frequency transformers?       When maintaining low-frequency transformers, the first step is to regularly check their insulation performance to prevent leakage and short circuits. Secondly, keep the transformer clean and clean off dust regularly to ensure good ventilation. Additionally, monitoring the temperature changes of the transformer and avoiding overheating is also very important. Remember, prevention is better than cure!    Common Question 4: What are the application fields of low-frequency transformers?        Low-frequency transformers are widely used in various fields such as power, communication, and industrial equipment. Whether it's large power plants or everyday appliances, they are all supported by low-frequency transformers. Their stability and reliability ensure the normal operation of various devices.  Summary      Through the explanations of these several common questions, we hope to help you better understand low-frequency transformers. Whether in the process of selection, maintenance or usage, mastering these knowledge will enable you to be proficient and handle various challenges with ease.

      When it comes to the key components in the electrical industry - transformers, the enterprises in our Foshan region can be regarded as the leaders in the industry. Today, please allow me to introduce to you in detail the outstanding achievements of our Foshan in the manufacturing of electrical transformers and technical solutions.        First of all, the electrical transformer manufacturing industry in our Foshan region is at the forefront of the industry. With exquisite craftsmanship, advanced technology and strict quality management, we ensure the outstanding quality of every transformer. Our transformers are precisely designed and rigorously tested, and can operate stably in various electrical environments to meet different power demands.        Our transformers come in various types, including but not limited to power transformers, dry-type transformers, and oil-immersed transformers, etc. These products are widely used in fields such as construction, industry, and energy, providing stable and efficient power support for various electrical equipment.        In addition, we also offer our customers comprehensive technical solutions. Whether it is the selection, installation, operation or maintenance of transformers, our professional technical team provides all-round technical support. Our technical team has rich experience and profound professional knowledge, and can provide the most suitable technical solutions for our customers to ensure the stable operation of the power system.       Our transformer products have received unanimous praise from customers for their excellent performance, reliable quality and excellent after-sales service. Our products not only hold a significant position in the domestic market, but are also exported overseas and have gained recognition in the international market.       The electrical transformer manufacturing industry in Foshan has been continuously striving for technological innovation and quality improvement. We firmly believe that only high-quality products and excellent services can win the trust of customers and positive feedback from the market.  If you have any requirements for electrical transformers or if you have any technical questions that need our answers, please feel free to contact us at any time. We will provide you with the most satisfactory products and solutions with a professional attitude.       Foshan, we are looking forward to cooperating with you and jointly creating a brilliant future!

       Jingwei Electronics Successfully Passes ISO Annual Surveillance Audit, Setting Industry Benchmarks for High- and Low-Frequency Transformers through Excellence        We are pleased to announce that our company has successfully passed the latest ISO management system annual surveillance audit. Thanks to our standardized operational processes, rigorous quality control, and continuous improvement mechanisms, we met all audit criteria. This achievement confirms that we continue to maintain internationally recognized, high-standard management practices across the entire value chain—from R&D and production to service—of our high- and low-frequency transformers.   Rigorous Audit Demonstrates Core Competence         The audit was conducted on-site by a team of senior experts. Through methods such as executive interviews, site inspections, document reviews, and record tracing, the team performed a comprehensive and meticulous assessment of key areas, including our production lines, raw material inspection, finished product testing laboratories, warehousing and logistics, and after-sales service.   The audit experts highly commended our performance in the following areas:        Strict Process Control: We have established robust Standard Operating Procedures (SOPs) and "first-article inspection" mechanisms for core processes—such as winding, varnishing, and assembly—effectively ensuring product consistency and reliability.       Advanced Testing Equipment: We utilize industry-leading comprehensive transformer testing systems, withstand voltage testers, and temperature-rise testing equipment, ensuring that every product leaving the factory meets or exceeds customer technical specifications.      Continuous Improvement Mechanism: We respond swiftly to market feedback and internal data by initiating Corrective and Preventive Actions (CAPA) and establishing closed-loop management, demonstrating a strong capacity for self-evolution.   Staying True to Our Mission: Empowering Power Electronics        As a specialized manufacturer of high- and low-frequency transformers, we recognize that quality is the lifeline of our enterprise. Whether producing high-frequency transformers for switching power supplies or high-frequency/power-frequency transformers for power transmission and industrial control, every choice of magnetic core and every turn of copper wire embodies our deep respect for safety and our unwavering commitment to our customers. Successfully passing the ISO annual audit is not only an affirmation of our company's management efforts over the past year but also a driving force for future development. It sends a clear signal to our global partners: choosing Jingwei means choosing stability, safety, and efficiency.   Looking to the Future: Embracing Innovation       Emerging sectors such as new energy, energy storage, 5G communications, and industrial automation are currently experiencing explosive growth. This trend places higher demands on the power density, energy efficiency, and environmental adaptability of transformers.       General Manager He stated: "The continued, effective operation of the ISO system is the cornerstone of our ability to compete globally. Moving forward, we will continue to adhere to ISO standards while increasing R&D investment in high-frequency magnetic materials, automated winding processes, and digital quality management. Our goal goes beyond merely 'passing' audits; we aim to internalize these standards into our daily practices, crafting every high- and low-frequency transformer with meticulous craftsmanship to provide our global customers with highly competitive magnetic component solutions for power supplies." About Jingwei        Founded in 2009, Jingwei Electronics is a high-tech enterprise integrating the R&D, production, and sales of high- and low-frequency transformers and related products. We primarily supply components—including high- and low-frequency transformers, current transformers, and inductors—for applications in home appliances, commercial electronics, lighting, industrial equipment, instrumentation, personal care products, and digital devices.        The company holds ISO9001 quality management system certification, and our products have obtained CQC and CE certifications. Guided by a business philosophy of "professionalism, focus, quality, reputation, and value," we deliver products known for their stability, reliability, and excellent cost-performance ratio, earning widespread acceptance and recognition from our customers.        We remain market-oriented, committed to achieving customer satisfaction through top-tier quality, reasonable pricing, and comprehensive service. We are dedicated to transforming our products from high-quality to world-class excellence, contributing to the glory of Chinese industry.

    As a control board manufacturer in the small household appliances industry, when choosing low-frequency transformers, it is recommended to consider the following four core dimensions to ensure the performance, safety and cost advantages of the equipment:   1. Clarify electrical parameters and application scenarios     Core parameter matching: First, based on the power requirements of the control board, precisely match the input/output voltage, rated power (VA/kVA), and frequency (the domestic power grid standard is 50Hz). The rated power of the transformer should be slightly higher than the actual       demand of the equipment to avoid overload operation.       Small household appliance characteristics adaptation: Small household appliances are usually  sensitive to size and noise. Therefore, when selecting, priority should be given to the efficiency and temperature rise control of the transformer. High efficiency not only reduces energy loss but also lowers the heat generated during long-term use.   2. Optimize structure and materials      Structural type: For the compact internal space of small household appliances, it is recommended to prioritize ring transformers or R-type transformers. Compared with the traditional EI type, these transformers have the advantages of smaller size, lower leakage flux, and extremely low operating noise, making them highly suitable for household appliances with space and quietness requirements. Materials and processes: The iron core of low-frequency transformers (industrial frequency) usually uses silicon steel sheets, and the winding material is preferably copper wire with better conductivity. At the same time, the insulation grade (such as A class 105℃, E class 120℃ or higher) should be selected based on the working environment temperature of the small household appliances to ensure long-term reliability.   3. Strictly control safety and certification Compulsory certification: For small household appliances produced and sold in China, the transformers must comply with the national compulsory safety standards, namely CCC certification. Protection and insulation: According to the protection level requirements of small household appliances (such as indoor dry environment or kitchen humid environment), confirm whether the insulation design and protection level (such as IP20) of the transformer meet the standards.   4. Comprehensive evaluation of suppliers and cost     Supplier strength: It is recommended to choose regular manufacturers with a mature supply chain in the Guangdong region (such as Dongguan, Huizhou, Shenzhen, etc.). Focus on examining whether they have a complete quality management system (such as ISO9001 certification), professional technical support capabilities, and good after-sales service.     Cost and delivery time: Under the premise of meeting technical and safety requirements, balance the cost of batch purchases and inventory pressure. For special specifications, it is necessary to confirm the customization cycle in advance to avoid affecting production line scheduling.   5. Selection Pitfall Avoidance Guide:      When selecting, be sure to clearly distinguish between low-frequency transformers and high-frequency (flat-panel) transformers. Low-frequency transformers are specifically designed for 50/60Hz industrial frequency, have a traditional structure, mature technology, and lower cost; while high-frequency transformers (usually operating at 20kHz or above) although have a smaller size, must not be directly used in industrial frequency circuits, otherwise it will lead to a significant increase in iron loss, temperature rise exceeding the limit, and even burning.       To make a more intuitive comparison, you can refer to the following core selection elements:   Evaluation dimension Key elements of product selection Suggestions for the Small Appliance Industry Electrical parameters Voltage, power, frequency Match the requirements of the control board and reserve sufficient power capacity Structural materials Ring/R-shaped, silicon steel sheet, copper wire Prefer compact, low-noise ring or R-type products. Security certification CCC certification, insulation class Must pass CCC, focus on insulation and protection Supplier Quality system, delivery time, after-sales service Prefer mature manufacturers in Guangdong with ISO certification        Before finalizing the model, it is recommended to request samples from the supplier and conduct tests to verify the full-load temperature rise, efficiency, and simulation of the actual working environment, in order to ensure the absolute reliability of the selection.

     When choosing a negative ion high-voltage unit, the core parameters directly determine the performance, safety, and lifespan of the final device. You can focus on the following parameters:   1. Core electrical parameters (determining the upper limit of performance)       Output voltage (kV): This is the most crucial indicator of the high-voltage unit. The level of output voltage directly determines the efficiency and concentration of negative ions. Generally, the higher the voltage, the greater the amount of negative ions produced. Common output voltages of negative ion high-voltage units range from several thousand volts to tens of thousands of volts (e.g., -8KV ~ -10.5KV DC).       Negative ion concentration (per cm³): This is an intuitive indicator of the purification effect. Depending on your application (such as bedroom, living room, or industrial workshop), choose products with different concentrations. Typically, they are classified as low output (less than 10 million), medium output (10 million - 100 million), and high output (more than 100 million). Input power and voltage (W/V): Ensure that the input parameters of the high-voltage unit (such as 220V AC or 12V DC) match your device's power supply exactly. Also, the power size affects energy consumption and heat generation. 2. Safety and environmental protection indicators (determining usage safety)        Ozone production: This is the most critical parameter to be cautious about when purchasing! Many devices using high-voltage discharge principles produce negative ions while also emitting ozone. Excessive ozone can harm the respiratory system and nervous system of humans. When purchasing, be sure to confirm with the manufacturer if there is an ozone detection report and choose a high-ozone or ozone-free high-voltage unit of high quality. Insulation and withstand voltage performance: High-quality negative ion high-voltage units usually adopt full encapsulation resin technology, which not only prevents moisture and shock but also effectively prevents high-voltage leakage and breakdown. You can pay attention to its insulation resistance (usually requiring extremely high values, such as 1000MΩ or above) and withstand voltage strength.         Noise level (dB): High-voltage units may produce a slight current sound when working. If used in a quiet environment such as a bedroom or office, it is recommended to choose products with extremely low noise (less than 35dB) to avoid disturbing rest. 3. Reliability and durability (determining lifespan)        Lifespan (hours): High-quality negative ion high-voltage units usually can operate stably for more than 20,000 hours under rated load. Shorter lifespan products not only increase replacement costs but also may pose safety hazards. Temperature rise and heat dissipation: Pay attention to the temperature rise of the high-voltage unit during long-term operation. Excessive temperature rise can accelerate component aging and may cause the device to burn out.      Operating environment requirements: Confirm the temperature and humidity range of the high-voltage unit applicable (such as -5℃ to 60℃, humidity 15% to 85%), ensuring it can adapt to the actual usage environment in your area.   4. Physical and appearance parameters (determining installation compatibility)      Size and packaging: Ensure that the volume size and installation holes of the high-voltage unit can fit perfectly into your device's casing. Fully encapsulated modules are usually more durable and safe than open-loop coils.     Output cables and interfaces: Check the length, wire diameter, and interface type (such as carbon brush head) of the high-voltage output cables to meet your assembly requirements. To facilitate your quick comparison, here is a core parameter quick reference table:   Parameter Dimension Core concern Avoiding pitfalls / Purchase advice Electrical performance Output voltage, negative ion concentration  The voltage must match the load, and the concentration can be selected as needed (for home use, a medium output is recommended) Safety and Environmental Protection Ozone release amount, insulation process Strictly prevent ozone from exceeding the limit. Opt for the fully encapsulated resin process. Durable and reliable Life span and temperature rise control Preferred products with a lifespan of over 20,000 hours, low noise and low heat generation Physical compatibility Size and interface type Measure the equipment space in advance to ensure that the pins and cables can be installed smoothly    

   In the field of power design aiming for higher efficiency and smaller size, the performance of core components is of vital importance. Precision Electronics is proud to introduce the high-frequency transformer model JW19-EEL190673, which is specifically tailored for high-performance switching power supplies, inverters, and various industrial control equipment. This product embodies our profound understanding and exquisite craftsmanship in magnetic component design, aiming to provide a powerful and reliable heart for your next-generation power solutions. Core performance, precise and reliable      The core design of this high-frequency transformer lies in its outstanding inductance control and electrical safety performance, ensuring stable operation in harsh environments.      Precise inductance value: Through precise winding technology, the inductance value is precisely controlled. The inductance of L1 winding is 1.5mH ± 25%, L2 winding is 185μH ± 25%, and L3 winding is 280μH ± 25%. All inductance values are tested at 1KHz/0.3V, ensuring the stability and efficiency of power conversion.      Excellent withstand voltage performance: Safety is our top priority. The product has passed strict withstand voltage tests. The primary winding can withstand 3.0KV/AC high voltage to the secondary winding, and the primary winding can also withstand 1.5KV/AC to the magnetic core, far exceeding industry standards, effectively preventing breakdown risks and safeguarding your equipment.   Exquisite Craftsmanship: Details Forge Quality      Superior performance stems from the ultimate pursuit of every detail. The manufacturing process of JW19-EEL190673 reflects our dedication to quality.       Precise winding： Using 0.40mm and 0.80mm enameled wire and 0.50mm three-layer insulation wire， all windings are wound counterclockwise to ensure consistency of inductance and low loss. Multiple insulation protection： The N1 and N2 windings use three-layer insulation wire， and 4mm wall tape is set between the windings. The N4 winding uses a sleeve protection. Multiple layers are added to build an unbreakable insulation barrier.       Stable magnetic core assembly： High-quality EEL19X27 ferrite magnetic cores are selected， and the fixed method using yellow tape 3TS is adopted， which not only ensures the stability of the mechanical structure but also provides excellent electromagnetic shielding effect， reducing external interference.   Wide applications， empowering the future       With its compact EEL19 skeleton size and high power density， JW19-EEL190673 high-frequency transformer is an ideal choice for achieving power miniaturization and high efficiency. It is widely used in： Switching power supplies (SMPS) Photovoltaic inverters LED driving power supplies Industrial automation control systems About Jingwei Electronics      Precision Electronics has been deeply engaged in transformer components for nearly twenty years. With rich R&D experience and continuous process innovation， we are committed to providing global customers with high-performance， customized magnetic solutions. We not only provide products but also offer comprehensive technical support from design to production， working together with you to promote the development of green energy and intelligent equipment. Contact Us      Please visit our official website immediately or contact the sales team to obtain the detailed specification sheet and samples of JW19-EEL190673, and experience the technological innovation brought by Jingwei Electronics to you.

    Transformers, as the core components in the field of power electronics, mainly undertake the tasks of voltage transformation, current transmission, and electrical isolation. Depending on the working frequency, they are classified as low-frequency transformers and high-frequency transformers. Although they are based on the same electromagnetic induction principle, they differ greatly in material selection, volume shape, and application scenarios.         Low-frequency transformer typically refer to devices operating at power frequency (50Hz/60Hz) or in the audio range. To maintain sufficient magnetic flux at low frequencies, they must use high-permeability silicon steel sheets as cores and have a large number of coil turns. This gives low-frequency transformers the characteristic of being "massive and imposing" - large in size and heavy in weight. However, their advantage lies in extremely mature technology, strong overload resistance, and stable operation. Therefore, in power transmission and distribution systems, large industrial equipment, and impedance matching circuits of high-fidelity audio, low-frequency transformers remain an unshakable cornerstone.      In contrast, High Frequency Transformer are the products of modern switching power supply technology, operating at frequencies typically in the range of tens of kilohertz or even megahertz. Thanks to the increased rate of magnetic flux change for high-frequency signals, they can use compact ferrite or amorphous alloy cores. This gives high-frequency transformers the trait of being "compact and agile" - with a volume only a fraction of the same-power low-frequency transformers and extremely high efficiency. From mobile phone fast-charging heads to data center server power supplies, and to the inverter systems of new energy vehicles, high-frequency transformers have become the key driver for the miniaturization and lightweighting of electronic devices due to their high power density.   In summary, low-frequency transformers excel in stability and capacity, being the "ballast" for energy transmission; high-frequency transformers win in efficiency and portability, being the "heart" of precise electronics. Both are on different tracks, jointly supporting the operation of modern electrical civilization.

In multi-output industrial switching power supplies, high-power industrial control power supply systems, power supply modules for new energy equipment, high-power adapters, and high-end AC-DC power conversion devices, multi-winding collaborative stable output, low leakage inductance, low heat generation, and high insulation and withstand voltage protection are the core foundations for the long-term and reliable operation of the equipment. This product with the part number G3917081206 and the model EDR39001, EDR39, a high-frequency transformer, is specially tailored for multi-output switching power supply boards. It is made based on the refined four-winding division winding process, equipped with high-quality PC40 magnetic cores, various specifications of high-temperature-resistant insulation wires, and strict factory electrical withstand voltage full inspection standards. It perfectly solves the industry problems such as uneven multi-output, excessive leakage inductance, high temperature rise, weak insulation, and large batch parameter deviations of conventional power transformers. The industrial-grade workmanship is suitable for long-term high-frequency continuous operation, making it a high-quality magnetic component for power manufacturers to batch install, equipment upgrade and replacement, and high-end power project support.   ✅ Four-winding precise division and dense winding, balanced multi-output, neat wiring to eliminate process hazards This EDR39 high-frequency transformer adopts the design of four functional windings N1, N2, N3, and N4 in independent counterclockwise dense winding. It precisely matches different wire diameters and turns for the multi-output power supply requirements, suitable for main power supply, auxiliary power supply, feedback power supply, and other multi-circuit collaborative work needs. The winding material selection is differentiated and finely matched, with N1 and N3 windings using Ф0.23mm 2UEW high-temperature-resistant enameled wire, N2 windings using Ф0.40mm double-strand three-color three-layer insulation wire, and N4 windings equipped with Ф0.15mm double-strand 2UEW enameled wire. Each winding group corresponds to 21Ts, 5Ts, 14Ts, and 6Ts standard precise turns, and the pin connection layout is clear and regular, perfectly adapting to the wiring requirements of 3-5 pins, 6-8 pins, 3-4 pins, and 1-2 pins. The entire production process strictly follows the core process requirements of flat and tight winding, smooth and flat insulation tape covering without wrinkles, no folding, and no multiple or insufficient wrapping. Specialized and refined operations are carried out for the process difficulties such as close hanging wire spacing between 3-pin and 4-pin, 4-pin and 5-pin, and 2-pin and 3-pin, with the windings arranged centrally and densely wound, and the winding lines all processed into right-angle avoidance. This effectively avoids copper wire contact, winding crosstalk, and short circuit hazards. At the same time, the special optimization processing of the frame pins is carried out, removing redundant pin number 7, and the soldering process is strictly controlled to ensure quality. Pin number 4 is cut to two-thirds of the standard length, from the production source to avoid problems such as false soldering, detachment, and wiring interference, ensuring stable and undisturbed multi-output power supply output.   ✅ High-quality raw materials for industrial grade configuration, resistant to vibration, shock, and aging, long-lasting in high-frequency working conditions All core raw materials of the entire machine are selected from industry-leading compliant quality materials, without cutting corners or reducing the process. It is specially designed for industrial high-frequency continuous working complex conditions, resistant to vibration, high temperature, aging, and slow performance attenuation. The core magnetic core is equipped with EDR39 PC40 professional air-gap magnetic core, with low magnetic loss coefficient, strong high-frequency magnetic flux stability, and excellent temperature rise control, effectively reducing the heat loss of the transformer under high-frequency operation. After assembly, the magnetic core is wrapped with 40mm high-temperature-resistant yellow insulation tape twice, and the tape is cut neatly at the bottom of the frame, well wrapped and well protected. It also combines insulation moisture-proof and structural reinforcement effects. It is equipped with 4.0mm and 40mm two specifications of 130℃ high-temperature-resistant yellow insulation tape for layer-by-layer insulation isolation of windings. The insulation protection is further strengthened layer by layer. The three-color three-layer insulated wire combined with high-temperature-resistant enameled wire offers both conductive performance and insulation safety. It does not age, crack, or leak electricity in long-term alternating high and low temperature working conditions, significantly extending the lifespan of the transformer as a whole.   ✅ Precise electrical parameter calibration, strict control of low leakage inductance, and compliance with high-voltage withstand safety standards All electrical parameters of the product are calibrated based on the 3259 comprehensive tester, following the dual standards of 1KHz/0.3V and 100KHz/0.3V for precise detection and calibration. The parameter tolerance is strictly controlled within the error range. The production parameters are highly consistent in batches. The core inductance values are precisely locked within the standard range. The L1 main winding has a 3-5-pin inductance of 580uH ± 10%, the L2 winding has 1-2-pin of 19.5uH ± 8, and the L3 winding has 6-8-pin of 12.5uH ± 5. The leakage inductance of 3-5 pins is strictly controlled at ≤ 25uH. The low leakage design effectively reduces high-frequency harmonic interference of the power supply, reduces the heat loss of the entire machine, and improves the power conversion efficiency. All products have been rigorously tested by the CC2670A professional withstand voltage equipment. The primary to secondary 1.5KV/AC, 5mA, 3-second high-voltage test is qualified. The insulation withstand voltage of the windings to the magnetic core is 1.0KV/AC, 5mA, 3-second, meeting the standards. Dual high-voltage insulation protection completely eliminates the risks of high-voltage breakdown, leakage, short circuit, and creepage, fully meeting the industrial power supply safety standards. Each product undergoes full inspection and sampling during factory production, ensuring electrical stability, compliance with withstand voltage standards, and controllable quality. This fundamentally reduces the return rate of power supply equipment in the after-sales service. ✅ Suitable for all scenarios of switching power supplies, flexible batch customization, and convenient installation matching This EDR39 High Frequency Transformer has a reasonable structure design, strong power-bearing capacity, and wide adaptability for multiple outputs. It is widely compatible with various high-power industrial switching power supply boards, multi-output power supply modules for industrial control equipment, power storage power supplies for new energy, high-power power adapters, industrial lighting driver power supplies, DC-DC boost and buck power supply equipment, and other various power categories. Whether it is industrial equipment operating under harsh conditions continuously or commercial conventional mass-produced power products, it can perfectly match the installation requirements. It can not only meet standardized batch spot purchase but also be adjusted in process details and parameter ratios according to the personalized power circuit requirements of the customer. The manufacturer's source production, strict quality control, and stable delivery time ensure high cost-effectiveness and high reliability. It helps power supply manufacturers simplify procurement and supply chain processes, reduce production costs, and enhance the market competitiveness of the entire machine. It is the ideal choice for core power transformer for multi-output switching power supplies.   The EDR39001 high-frequency transformer is directly supplied by the source factory with precise winding process, low leakage inductance, high withstand voltage, and stable multi-output. It has sufficient stock to support customization and is suitable for all types of power supply installations. It provides strong protection for the safe and stable operation of your power equipment!

In the core supporting fields of industrial switching power supplies, industrial control power supply modules, high-power power adapter, and various DC-DC and AC-DC power conversion devices, a high-frequency transformer with stable performance, controllable loss, compliance with insulation standards, and strong adaptability is a key core component for the efficient operation, long-term durability, and compliant mass production of the entire machine. This G3224110802/JW32-PQ323060 model PQ3230 High Frequency Transformer is specially tailored for switching power supply boards. It is created based on refined winding technology, high-quality original core materials, and strict quality control testing standards, balancing high power density, low internal resistance loss, strong insulation protection, and long-term working stability. It perfectly meets the power supply support requirements for various conventional and harsh working conditions. It is the preferred magnetic component for power equipment manufacturers for bulk procurement, whole machine upgrade, and quality improvement.   ✅ Customized precise winding process, dense winding and parallel winding design, efficient and balanced power transmission The product adopts the N1 and N2 dual-winding multi-strand wire synchronous dense winding and parallel winding process. It selects Ф0.10mm × 60 strands of 2UEW 155℃ high-temperature-resistant enameled wire for precise winding. The two windings have a unified 17Ts standard number of turns, precisely matching 3-10-pin and 4-9-pin standard wiring layouts. It is equipped with 12LX20mm dedicated bushing for partition insulation protection, separate hanging wiring for neat layout, and avoids common problems such as messy winding, coil offset, and uneven force. The entire process follows strict requirements of flat and tight winding, smooth and flat insulation tape covering without wrinkles, no folding, and no multiple or insufficient wrapping. The winding arrangement is uniform and consistent, significantly improving electromagnetic coupling efficiency, effectively reducing leakage magnetic loss and heat consumption during power operation. At the same time, the refined processing of the core pins is carried out, removing redundant pins, strictly controlling the duration and depth of soldering, and eliminating potential welding defects such as false welding, detachment, and over-welding, ensuring the stable connection and conductive stability of the transformer during long-term power supply operation, and eliminating power supply fluctuations and poor contact problems. ✅ Enhanced with high-end original materials, resistant to temperature and wear, suitable for long-term high-frequency working conditions The core components of the entire machine are selected from industry-quality compliant raw materials, with solid and non-skilled reduction of materials. They are suitable for high-frequency continuous operation and complex temperature and humidity working conditions. The core magnetic core uses PQ3230 PC40 grinding air-gap special magnetic core, with low magnetic loss and high saturation magnetic flux density. Under high-frequency working conditions, the temperature rise is controllable, and the magnetic performance is stable, perfectly matching the structural advantages of PQ-type magnetic cores, small volume, high power, and low leakage inductance. It is combined with PQ-3230/6 + 6PIN black bakelite with a guard plate in a T-shaped frame structure, which is stable, has strong insulation, is resistant to deformation and aging, and the PCB is securely installed without loosening. The 19mm and 13mm high-temperature yellow insulation tape with a temperature resistance of up to 130℃ provides multi-layer encapsulation protection against moisture insulation. The 1:1 ratio of curing black glue precisely fixes 8 points for precise bonding, and the dual reinforcement of the magnetic core connection and the position of the frame pin seat ensures no loosening or displacement under vibration conditions, eliminating the problem of magnetic core loosening and performance degradation. It is equipped with a dedicated laser-printed identification label, with standardized placement, clear and wear-resistant marking, facilitating product traceability management and compliance with the entire machine's supporting identification requirements, suitable for industrial batch production quality inspection.   ✅ Precise electrical parameter calibration, dual strict tests, quality compliance and safety without worries The electrical performance parameters of the product are precisely calibrated at the factory. The inductance value is strictly locked within the standard range of 65uH ± 20% (52-78uH), the DCR resistance is strictly controlled within 60mΩ, and it is tested and calibrated by the 3259 comprehensive tester at 1KHz/0.3V professional standards. The inductance parameters are precise, and the internal resistance loss is extremely low, ensuring stable voltage and current output of the switching power supply, higher power conversion efficiency of the power supply, and lower energy consumption. The product has passed the CC2670A professional withstand voltage test. The winding has passed the 1.5KV/AC, 5mA, 3s high-voltage insulation test, demonstrating excellent insulation isolation performance. It effectively eliminates potential safety hazards such as high-voltage breakdown, leakage, and short circuits, and complies with the industry standards for power equipment safety protection. From electrical performance to insulation safety, from structural stability to parameter consistency, each product follows the full-process quality control inspection. The parameter deviation is small, and the batch consistency is high, completely solving the pain points of uneven performance in batch production and high failure rates in after-sales service of power equipment.   ✅ Wide adaptability in multiple scenarios, universal for switching power supplies, and customizable according to demand This PQ3230 high-frequency transformer has a compact structure, strong power adaptation, and outstanding compatibility. The core is compatible with various industrial switching power supply boards, industrial control equipment power modules, high-power power adapters, LED driving power supplies, vehicle power supply, DC-DC power converters, and other full-category power equipment. Whether it is a civilian conventional power product or a high-frequency power supply equipment under harsh industrial conditions, it can be perfectly matched and adapted. It can not only meet the requirements of standardized mass production and installation, but also optimize the process details according to the customer's personalized power circuit parameters. The product has both high cost-effectiveness and high reliability, with low rework rate and long service life, helping power equipment manufacturers reduce production costs and enhance product market competitiveness. It provides a one-stop solution for the core power transformation and power supply requirements of switching power supplies.   Specialized in high-frequency transformer precision production, with strict quality control and reliable processes, available in stock + customizable, compatible with all specifications of switching power supply installation, choose the JW32-PQ323060 high-frequency transformer to safeguard the stable operation of your power equipment!

      Precisely empower electronic devices, meticulously forge a stable core - JW34-ETD343412 high-frequency transformer, meticulously polishing every detail with strict standards, unlocking the potential of multiple application scenarios with professional performance, and fortifying the first line of defense for power conversion in your products.       As a high-frequency transformer targeting mid-to-high-end electronic devices, this product is identified by the product number G3424041004 and the model JW34-ETD343412. Relying on refined production processes and precise parameter control, it balances high performance and high stability, catering to the power conversion needs of various electronic devices in multiple fields, and becoming the core component choice for industrial instruments, communication equipment, consumer electronics, etc. 【Precise parameters, stable output without compromise】 The inductance value is precisely controllable, and every parameter has undergone strict testing, calibrated with the 3259 comprehensive tester (1KHz/0.3V standard), ensuring operational stability: L1 (6--2 pins) 1.1mH ± 10%, L2 (12-13 pins), L3 (13--14 pins) all 5.5uH ± 1uH, L4 (16--17 pins) 87uH ± 10uH, L5 (8--9, 28--29, etc. multiple pins) 41uH ± 10uH, multiple inductance specifications adapt to different circuit requirements, effectively reducing energy loss and improving equipment operational efficiency.   【Strict withstand voltage, comprehensive safety protection】 Safety performance is fully guaranteed, with strict voltage withstand tests following industry standards, using the CC2670A instrument as the detection standard. The primary winding can withstand 3.0KV/AC 5mA for 3s, the primary and secondary windings can withstand 1.5KV/AC 5mA for 3s, with super insulation performance, effectively avoiding leakage and breakdown risks, suitable for various high-demand power supply scenarios, safeguarding equipment and personnel safety.   【Precise craftsmanship, consistent quality】 Adhering to the concept of refined production, the winding process is strictly controlled, requiring the winding to be flat, the tape wrapping to be flat without wrinkles, no folding, and not over-wrapped or under-wrapped, eliminating process flaws from the source; throughout the process, quality control is carried out, each process is strictly screened to ensure product consistency and reliability, and it is not prone to aging or damage during long-term operation, significantly reducing equipment maintenance costs.   【Multi-scenario compatibility, empowering diverse needs】 Relying on the structural advantages of the ETD series high-frequency transformers, this product is compact in size, has low loss, and fast frequency response, widely adaptable to switching power supplies, communication equipment, industrial instruments, audio-visual equipment, UPS power supplies, and other electronic devices, capable of meeting standardized production requirements for batch production, and also suitable for customized adaptation according to specific customer specifications, balancing generality and individuality requirements. From parameter calibration to process refinement, from safety protection to scenario adaptation, JW34-ETD343412 high-frequency transformer breaks performance bottlenecks with professional strength, with high precision, high safety, and high stability core advantages, becoming the trusted choice for electronic equipment manufacturers. Choose us, with meticulous components to empower product upgrades, with stable performance to safeguard business development, and join hands to create a new future in the electronic field together!

             Precision Electronics, dedicated to the research and production of electronic components, offers you the JW35-ER354223 type high-frequency transformer. With strict manufacturing processes and stable performance, it enables the efficient operation of various power supply systems.   Core technology, laying the foundation for quality     Standardized winding design, precise control      Multi-winding layer-by-layer winding: N1/N3 uses Φ0.32mm × 2 2UEW enamel wire, with 35TS turns + 18L insulation sleeve; N2/N4 uses Φ0.20mm × 15 multi-strand wire, with 11TS turns + 15L insulation sleeve; N5 uses Φ0.25mm 2UEW enamel wire, with 3TS turns + 28L insulation sleeve. The entire process is wound counterclockwise to ensure the consistency of the windings.      Strict insulation process: Throughout the process, deep yellow insulating tape is used. N1/N3 is double-layer dense winding + inter-layer isolation, each winding is centered dense winding, the insulation sleeve protection is provided, and the wall tape reinforcement is used to reinforce, eliminating problems such as wrinkling, folding, and missing wrapping. The insulation performance is fully achieved. Strict performance standards, stable and reliable      Precise inductance values: L1 (1-3 pins) 600uH ± 10%, L2 (5-6 pins) 1.3uH ± 0.5uH, L3 (8-10.11 pins / 9-10.11 pins) 15uH ± 5uH. Calibrated by the 3259 comprehensive tester at 1KHz/0.3V standard, the parameters are precise without deviation.     Super strong voltage protection: Primary to secondary 3.0KV/AC 5mA for 3s, Primary / Secondary to core 1.5KV/AC 5mA for 3s. Tested by the CC2670A instrument, it is resistant to interference and withstands high voltage, suitable for complex working conditions.    Quality material guarantee: Uses EC35/42 air-gap grinding magnetic cores, 155℃ high-temperature resistant enamel-coated wire, cured black glue + transparent labels, frame with a guard plate design, stable structure and long lifespan.    

Environmental compliance in the electronics and electrical industry has become a norm. Green quality is the core strength. Today, we are officially announcing: Our high-frequency transformers and low-frequency transformers have all materials that have passed RoHS testing. Each product is produced in an environmentally friendly manner and adheres to the compliance bottom line, safeguarding the environment and health. High-frequency and low-frequency transformers are core components for power transmission and are widely used in switching power supplies, household appliances, security systems, and new energy fields. The safety of their materials is of utmost importance. RoHS, as a globally recognized environmental standard, strictly limits the use of toxic and harmful substances such as lead, mercury, and cadmium, serving as the "green passport" for product compliance for export. We adhere to the principles of "green production and quality first". From the ferrite cores and coils of high-frequency transformers to the silicon steel sheets and insulating materials of low-frequency transformers, each type of raw material is strictly selected and inspected one by one. The entire process follows the RoHS standards to ensure that no harmful substances exceed the limit, truly achieving environmentally friendly production. High-frequency transformers are small and efficient with low energy loss, suitable for high-frequency circuits; low-frequency transformers have mature technology and strong stability, supporting power transmission at the industrial frequency. Both products are empowered by rigorous testing, meeting both domestic environmental protection requirements and international compliance standards, helping customers avoid compliance risks and smoothly export. Compliance is the foundation, and environmental protection is the responsibility. In the future, we will continue to deeply focus on the transformer field, strictly control every production link, and provide reliable environmental-friendly products that comply with RoHS standards to customers in various industries, offering efficient and reliable power solutions, and jointly embark on the new journey of green development. As core components for power transmission and energy conversion, high-frequency and low-frequency transformers are widely used in switching power supplies, household appliances, security systems, and new energy fields, and the safety of their materials directly affects human health and the environment. RoHS, as a globally recognized "green passport" for electronic and electrical products, strictly limits the use of 10 toxic and harmful substances such as lead, mercury, and cadmium, reducing pollution at the source. We always adhere to the principle of "green production and quality first", not ignoring any detail: from the ferrite cores and coil wires of high-frequency transformers to the silicon steel sheets and insulating materials of low-frequency transformers, each type of raw material is strictly selected before entering the site, and inspected one by one after entering the site. The entire process follows the RoHS testing standards to ensure that no harmful substances exceed the limit. High-frequency transformers are small and efficient with low energy loss, suitable for high-frequency circuit requirements; low-frequency transformers have mature technology and strong stability, supporting power transmission at the industrial frequency. Regardless of which product it is, we empower it with rigorous testing to meet both domestic environmental protection requirements and international compliance standards, helping customers' products smoothly export and avoid compliance risks. Green has no boundaries, and quality leads the way. We understand that compliance is not a burden, but a responsibility to customers, the environment, and society. In the future, our company will continue to deeply focus on the transformer field, adhere to the environmental protection初心， strictly control product quality， and provide reliable products that comply with RoHS testing to customers in various industries， offering green， efficient， and compliant power solutions， and jointly embark on the new journey of green development.

After years of deep research and production in magnetic component technology, our factory has been dedicated to providing high-adaptability and high-stability inductors and transformers as core components for small household appliances and equipment power switches. We have launched the JW4X20-10180AL model magnetic rod inductor (product code L42024070204), featuring precise parameters, compact structure, and durable manufacturing processes. It perfectly meets the miniaturization and high-frequency application requirements of small household appliances and power switches, making it an excellent choice for circuit matching. This magnetic rod inductor is precisely dimension-controlled, with a structure that closely fits the actual installation. It uses 4*20 standard magnetic rods as the core, combined with a horizontal winding structure. The key dimensions are strictly controlled at 18±1mm, 1.8±0.2mm, and the maximum height is only 9.0mm. The compact and small size is suitable for the high-density PCB layout of various small household appliances and power switches, allowing for quick installation without additional modifications, significantly improving the efficiency of production line matching. The soldering needle at the winding end is 5mm±1mm long, with standard pin specifications, ensuring high welding adhesion and effectively reducing the failure rate during installation. The electrical performance is excellent, with stable parameters and low loss. At 25℃ ambient temperature, under the standard test conditions of 1KHz/0.3V/series internal resistance of 30Ω, the inductance is precisely 1.5uH±0.5uH, the DCR resistance is ≤2.5mΩ, and the low internal resistance design significantly reduces power loss, ensuring efficient and energy-saving operation of the circuit. The QZY 180℃ high-temperature resistant enameled wire (wire diameter P1.80mm) is used for reverse winding 9.5 turns, with a regular and tight winding structure, stable signal transmission without interference, and suitable for high-frequency working scenarios of power circuits. The manufacturing process is meticulous and reliable, with high quality and durability. After winding, both ends are fixed with black glue, without the need for a sleeve, and the process is simple and firmly fixed, effectively preventing coil loosening and displacement, improving the product's shock resistance and impact resistance; the core materials include high-temperature-resistant enameled wire and high-quality magnetic rods, combined with tin strips, special soldering agents, and other high-quality auxiliary materials. All materials are of environmentally friendly materials, and the entire process is strictly quality-controlled, ensuring the product has high temperature resistance, anti-aging properties, and low temperature rise and strong stability during long-term operation. Our factory supports bulk supply, with consistent product quality. We can also customize and adjust as needed. The JW4X20-10180AL magnetic rod inductor, with its high adaptability, low loss, and long lifespan, ensures the improvement and efficiency enhancement of small household appliances and equipment power switches. It is an ideal partner for magnetic component matching.

  In order to effectively enhance the safety awareness within the factory area and improve the emergency response capabilities of all staff, in order to prevent all kinds of safety accidents, the industrial park will uniformly organize a fire emergency drill and safety training activity at the end of this month. Our factory attaches great importance to this and actively responds. We have organized all on-duty employees to participate on time and have them thoroughly learn safety skills. We have tightened the safety production nerve. This training and drill is in line with the actual production situation of the factory area. The content is practical and comprehensive, and highly practical. At the event site, professional fire instructors, in combination with industrial production scenarios, elaborately explained fire safety knowledge, key points of fire hazard investigation, and emergency response procedures in case of sudden fire, conducted hands-on practical teaching, and focused on demonstrating the standard usage methods of fire hydrants. From equipment inspection, water hose connection to water discharge for fire extinguishing, they broke down the actions step by step, allowing the on-site employees to practice one by one and master the correct usage skills of fire equipment, eliminating the problems of not knowing how to use or using incorrectly. In addition to the practical operation of fire-fighting equipment, this training also added an emergency first aid section. The instructor demonstrated on-site the procedures of artificial respiration and cardiopulmonary resuscitation, and elaborated in detail on key points such as the emergency rescue process, compression frequency, and operational norms. This helped employees master basic emergency rescue skills, enabling them to scientifically respond and efficiently handle unexpected incidents.  During the drill, all employees listened attentively to the explanations, actively participated in the practical operations, strictly observed discipline throughout the process, and cooperated in an orderly manner. They truly internalized the safety knowledge and mastered the skills. Everyone expressed that this drill was closely related to reality and full of valuable content. It not only filled the gap in fire safety knowledge but also enhanced the ability to respond to emergencies and cooperate in handling situations.  Safe production is the bottom line for the development of an enterprise, and it is also an unbreakable red line that cannot be relaxed. This fire drill in the park has further strengthened the safety defense line of the factory area and enhanced the safety responsibility awareness of all staff. In the future, our factory will continue to attach great importance to safety production work, implement safety inspections on a regular basis, keep the safety string tight, strictly abide by safety regulations, and lay a solid foundation for stabilizing production and creating a safe factory area.

Having focused on power magnetic components for many years, we have been deeply engaged in the research and production of High Frequency Transformer, Low-frequency transformer, Harmonic inductance and inductors. We specialize in developing high-performance supporting components for small household appliances and equipment power switches. This EQ40 model high-frequency transformer (product number G4019071104, model EQ402001) has achieved precise dimensions, stable parameters and strict manufacturing processes, making it the preferred core component for power circuits. The product size is precisely integrated, with a compact and small overall structure, suitable for high-density PCB board layouts, and has a high installation adhesion. It uses the EQ40 air-gap magnetic core and is paired with a 6+6PIN vertical black bakelite frame. It has excellent heat resistance, insulation performance, and combines structural stability with high heat dissipation efficiency. It perfectly fits the limited installation space of small household appliances and switch power supplies, and can be quickly adapted for installation without additional modifications.  The electrical parameters are precise and stable, and all performance indicators meet the standards and are durable. The inductance parameters are strictly controlled. The value of the 5-6-pin inductor is 290uH ± 40, the 1-2-pin one is 8.5uH ± 3, and the CT winding is 18.5uH ± 6. The standard test uses 1KHz/0.3V, and the performance is highly consistent, with no deviation in operation. The withstand voltage test is rigorous and passed. The primary can withstand 2.0KV/AC 5mA for 3 seconds with the secondary, and the primary and secondary can withstand 1.5KV/AC 5mA for 3 seconds with the magnetic core. The insulation protection is in place, ensuring high electrical safety and eliminating the risks of leakage and breakdown.    The production process is meticulously refined, and the materials are of high quality and durable. We use 155℃ high-temperature resistant enameled wire and multi-strand twisted wires. Combined with Teflon heat shrink tubing and high-temperature insulating tape, the winding is smooth and tight, and the tape is neatly wrapped. There are no wrinkles or folds. The multiple windings are precisely wound, with correct number of turns and proper wiring. After the magnetic core is ground to create air gaps and assembled, it is covered with double layers of tape, which is firm and not prone to loosening. It has strong stability during long-term operation, with low temperature rise, low loss, and long service life.  This EQ40 high-frequency transformer is suitable for various small household appliances' main control power supplies and device switching power supplies. It features stable performance, strong adaptability, and reliable quality. It can be supplied in large quantities and supports customized adaptation. It helps improve the quality and efficiency of power products and is a reliable choice for electronic power supplies.

To effectively implement the primary responsibility for safety production and enhance the fire safety awareness of all employees, as well as improve the emergency response and evacuation capabilities in case of sudden fires, our company organized an all-staff fire emergency drill on March 17th.As a professional source manufacturer of magnetic components such as High Frequency Transformer, Low-frequency transformer, and Harmonic inductance, the company always prioritizes safety production. Through practical drills, it builds a safety barrier for production and operation.    Before the drill, the safety management department conducted special fire safety training based on the production process characteristics of electronic manufacturing and coil winding, as well as dip coating and drying. The training focused on topics such as electrical fire prevention, control of flammable materials in the workshop, initial fire response, evacuation and self-rescue in a fire scene, and the proper use of fire-fighting equipment. Typical accident cases were used to warn all employees to keep safety in mind.    When the alarm sounded, the drill officially began. In this simulation, a fire broke out in the production workshop due to equipment line failure. The on-site emergency team responded quickly: the alert group defined the dangerous area, the evacuation group guided employees to bend over and cover their noses, and evacuate along the safety passage in an orderly manner; the firefighting team skillfully used dry powder fire extinguishers and fire hoses to quickly suppress the simulated fire point; the rescue team provided initial treatment to the "injured" personnel. Each link was coordinated smoothly, the division of labor was clear, and all employees safely evacuated and completed the count, achieving the expected results.  In the practical operation section, the safety officer demonstrated the standard operation of the fire extinguisher "lifting, pulling, holding, pressing", and the employees practiced one by one. They mastered the skills of fighting initial fires. The company's responsible person emphasized that the production of electronic components involves dense electrical equipment and flammable materials, and must adhere to "prevention first, prevention and elimination combined", ensuring that safety responsibilities are implemented at every process and position.    This drill further improved the company's emergency response process, tested the practicality of the plan, and enhanced the team's collaborative response capabilities. In the future, our company will continue to improve the long-term safety mechanism, regularly conduct safety training and emergency drills, strictly investigate and rectify hidden dangers, and ensure a stable safe production environment to support high-quality development and provide reliable products and reassuring services for customers.

As a specialized manufacturer of transformers, we fully recognize the decisive role that core electronic components play in the quality of home appliances. The EI35-10501501X low-frequency transformer represents a proprietary power solution we have developed through in-depth research specifically for the operational environment of pressure cookers. From parameter design to material selection, every aspect is meticulously tailored to meet the power requirements of pressure cookers, thereby establishing a robust dual line of defense—ensuring both safety and stability—for your kitchen cooking.   Precise Parameter Matching: Tailored to the Core Requirements of Pressure Cookers Based on the circuit characteristics of the pressure cooker, we have performed precise adjustments to its electrical performance: Stable Input and Output: The primary input is adapted for standard 220VAC/50Hz household mains power, featuring a maximum no-load current of just 25mA and extremely low standby power consumption. The secondary output is precisely regulated at 10.5V ± 0.5V, with an output current capacity reaching 150mA; this provides continuous and stable power support for the pressure cooker's control circuitry, solenoid valves, and other components, thereby ensuring precise and error-free pressure control and temperature regulation. Rigorous Safety Standards: Dielectric strength and insulation performance far exceed standard industry requirements. The primary-to-secondary circuit withstands high-voltage testing at 3750V, 5mA for 2 seconds; the primary-to-core and secondary-to-core circuits withstand AC 1750V, 5mA testing for 2 seconds; and insulation resistance measures ≥100 MΩ at DC 500V for 2 seconds. Coupled with Class B insulation, these specifications effectively eliminate the risk of leakage current and ensure full compliance with national safety standards. Reliable Temperature Control: Under rated voltage and load, the temperature rise—measured via the resistance method over a 4-hour test—remains ≤45K. Even when the pressure cooker operates under high load for extended periods, the transformer maintains a stable operating temperature, thereby preventing safety hazards caused by overheating. Meticulous Material Selection: Crafting Enduring Quality The durability of a transformer begins with the rigorous selection of every single material. Core Components: Utilizes an EI35H50N 0.5mm white-sheet iron core, featuring excellent magnetic permeability that effectively minimizes magnetic loss and enhances power conversion efficiency. This is paired with a custom-designed EI35×11.5×2+4 "King-shaped" white bobbin, providing a robust structure that offers reliable support for the internal windings. Winding Process: The primary winding utilizes φ0.05 × 5400 turns of enameled wire, while the secondary winding employs φ0.19 × 335 turns; strict adherence to turn count standards ensures precise voltage output. Distinct windings are differentiated using color-coded insulating tapes: 8.5mm red tape wraps the primary winding, 7.0mm blue tape wraps the secondary winding, and 12.5mm dark yellow tape wraps the core, ensuring that every layer of insulation and isolation is meticulously applied. Detailed Protection: Employing a vacuum impregnation process, this design further enhances overall insulation performance and moisture resistance, enabling the product to withstand the humid working environment of a kitchen and extending its service life. Standardized structural design, optimized for efficient production. Addressing the mass production requirements of home appliance manufacturers, the structural design of this transformer strikes a balance between practicality and adaptability. Its external dimensions strictly adhere to a tolerance standard of ±0.5mm, featuring overall specifications of 31 MAX × 36 MAX × 27.5 MAX—a perfect fit for the internal spatial layouts of mainstream pressure cookers. Furthermore, details such as pin pitch and labeling areas have been standardized to allow for direct integration with automated production lines, thereby enhancing overall assembly efficiency.   From parameter customization to material selection, and from performance testing to structural design, the EI35-10501501X low-frequency transformer remains steadfastly centered on the core principles of "safety, stability, and adaptability," establishing itself as a trusted partner for pressure cooker manufacturers seeking critical components. As the original manufacturer, we offer customized services tailored to specific client needs; from initial product design through to mass production, we provide end-to-end quality assurance and delivery reliability, empowering home appliance products to build a strong core competitive edge.      

I. Product Positioning      This product is mainly targeted at the markets of small and medium power household appliances and industrial control equipment. For power modules and filter circuits that require stable inductance values, we have launched the EI28-00950701X type harmonic inductor. With precise parameters and compact design, it provides reliable electromagnetic conversion solutions for the equipment.  II. Core Selling Points of the Reactor      Precise inductance, stable output: The inductance values of 1-3 pins are precisely controlled within 1.0 - 1.25 mH, with a precise tolerance of ±0.5 mm. This ensures stable inductance values during circuit operation, reduces current fluctuations, and enhances the overall performance of the equipment.      Compact size, strong adaptability: The maximum size of the entire unit is 31mm × 31mm × 30mm. The details such as pin spacing and height have been meticulously designed (for example, the bottom pin spacing is 7.5 ± 0.5mm, 15 ± 0.5mm). It perfectly fits the PCB board layout of various miniaturized devices, eliminating the need to adjust the equipment structure for accommodating large-sized transformers.       High-quality wire, durable guarantee: Using 0.70mm QA 2UEW enameled wire, it has excellent heat resistance and conductivity, extending the product's service life and reducing equipment maintenance costs.

      Among the core components of electronic devices, the performance of the inductor directly affects the stability and reliability of the device. The Φ22-730652A magnetic ring inductor we have launched, with its solid structural design, has become the preferred choice for power supply, filtering and other scenarios.          This inductor adopts a ring-shaped coil structure. The maximum outer diameter of the magnetic ring is 25.5mm, and the overall height is 32mm. The pin spacing is controlled at 10 ± 0.5mm, which can perfectly adapt to the circuit board design with high density integration. The coil and the base plate are fixed with epoxy resin, which not only improves the insulation performance but also effectively resists external environmental interference.        In terms of electrical performance, Φ22-730652A is equipped with two sets of windings, namely N1 and N2. Both are wound using 0.65mm high-purity enameled copper wire. Its core inductance parameters reach ≥ 115mH (between the 1-4 and 2-3 pins), which can stably achieve efficient conversion and transmission of electromagnetic signals, providing solid electromagnetic support for the equipment.        From material selection to process control, Φ22-730652A  Common-mode inductance fully complies with strict quality standards. Whether it is industrial control equipment, consumer electronics or new energy applications, this inductor can provide stable performance to help customers achieve product upgrades and contribute to the high-quality development of the electronics industry.