10 Years of Technical Accumulation + Customization Capability: Our Custom ETD39 Coil Former Injects Core Momentum into Your Equipment July 22,2025.

In an era of accelerating iterations in electronic devices, the stability and adaptability of core components directly determine the performance ceiling of equipment. With over 10 years of technical accumulation in the electronics industry, our company not only delivers stable product quality but also boasts strong customization capabilities. Recently, the successful mass production of the custom ETD39 high-frequency transformer bobbin with 8+8 pins for a client has further demonstrated our prowess in customized solutions. By choosing us, you will gain reliable products, high-quality services, and full-chain supporting support, ensuring that core components never become a bottleneck for your equipment development.

I. Mass Production of ETD39: Speaking Through Reliable Quality

More than 10 years of deepening the electronic industry, our company understands the critical importance of "stability" for core components. From raw material selection to production process refinement, we have established a stringent quality control system. The mass production of the ETD34 high-frequency transformer bobbin stands as a testament to the effectiveness of this system.

From mold development to trial production, this bobbin underwent rigorous performance testing by professional engineers, including stability tests under high and low temperatures, insulation performance verification under long-term loads, and adaptability debugging with various types of high-frequency transformers. Every piece of data underscores our commitment to "reliable quality." The launch of mass production means you can obtain standardized, highly stable core components in bulk, eliminating concerns about quality fluctuations during small-batch trials—this is the confidence derived from over 10 years of technical accumulation.

II. ETD39 Solution: Solving Pain Points with Phenolic Materials and Problem-Solving Expertise

Equipment requirements vary widely, and standardized products may not always offer a perfect fit. Our customization service is designed to break through the "general-purpose component adaptation bottleneck," with the custom ETD39 transformer bobbin serving as a prime example.

To address the space constraints and performance requirements of the client’s specialized equipment, we selected high-performance phenolic material—a material with excellent heat resistance, aging resistance, and insulation properties, making it ideal for precision equipment. During development, our team tackled multiple challenges such as "structural compactness vs. heat dissipation efficiency" and "material strength vs. machining precision." Through numerous mold optimizations and process adjustments, the product ultimately passed extreme tests including vibration and impact, achieving the goal of "reliability and stability."

Multi-layer air coil inductor

Our products are suitable for manufacturing, military industry, aerospace, and household appliances, such as communication equipment, servo motors, and switching power supply transformers. Whether you need transformers with special dimensions, materials, or performance, our customization service can respond precisely, ensuring seamless integration between core components and equipment.

III. From Core Components to Peripheral Accessories: One-Stop Equipment Needs Fulfillment

Choosing our company means gaining not just a single product, but full-chain support covering "core components + peripherals." Our main business includes core equipment such as high-frequency transformers, flyback transformers, and potted transformers, as well as supporting accessories like high-frequency transformer clips, bases, and housings, along with key components such as ferrite cores, powder cores, high-power inductors, energy storage inductors , current transformers, and high current transformers.

Switching Mode Power Supply Transformer

The advantages of this full-industry-chain layout are clear: when purchasing the ETD39 high-frequency transformer bobbin, you can simultaneously procure matching clips and housings, reducing communication costs with multiple suppliers. When customizing the ETD39 bobbin, we can coordinate parameter optimization of cores, inductors, and other accessories to ensure optimal system performance. From parameter matching advice in the early design stage to supply chain guarantees during mass production, high-quality service runs through every step, saving you time and effort.

IV. Choose Us: Let Core Components Become a "Plus" for Your Equipment

Competition in electronic equipment ultimately hinges on attention to detail. With years of technical accumulation, our company has developed an unwavering focus on "reliability"—from standardized quality control in ETD39 coil former mass production to material and process breakthroughs in ETD39 customization, every step is designed to safeguard stable equipment operation.

If you are troubled by quality fluctuations in core components, our products and services offer a stable "plug-and-play" experience. If you are hindered by technical barriers in customization, our engineering team will collaborate with you to overcome challenges. If you need a one-stop accessory solution, our comprehensive product range can improve procurement efficiency by over 50%. Additionally, we provide various finished transformers, filters, high frequency inductors , and high-current transformers.


Our company firmly believes that excellent core components should not only meet performance requirements but also serve as a "booster" for your equipment upgrades. We look forward to partnering with you to ensure every piece of equipment is equipped with time-tested core momentum.

Contact us today to explore bulk orders or request technical specifications.

Email: sales008@mycoiltech.com

Encapsulated transformer


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