Magnetic Components Manufacturer

Fortune 500 companies work with us since 2020. They trust us not because we have 27 years of experience in the Magnetic Component industry, but our expertise in customized solutions, stable delivery time and product quality.

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Twenty Six Years of Top Experience

Our main products include all kinds of Electronic components, high frequency transformers, low frequency transformers, chokes, toroidal inductors, chip inductors, switching power supplies, etc. Our engineers have rich experience in R&D, and our services will meet your design needs.

We provide a large number of efficient processing solutions for industrial customers. The precision and stability of our products are at the forefront of the industry.

They chose us

Who needs electronic transformers

Clients choose us for our combination of superior quality and competitive pricing. We've earned their trust by consistently delivering exceptional products at fair prices, and we remain committed to maintaining this trust through ongoing innovation and excellent service.

Quality is a Top Priority at LPEMA

We are dedicated to delivering products and services that not only meet but exceed the expectations of our customers. Our commitment to quality is evident in every aspect of our operations.

LATEST BLOGS

Your Partner LPEMA

PoE Transformer Selection Guide: How to Choose the Right Magnetics for Your PoE Design

Learn how to select the right PoE transformer for your design. Covers IEEE 802.3af/at/bt power levels, flyback vs forward topology, core saturation, thermal management, and key parameters like DCR, turns ratio, and isolation voltage.

Jun 2, 2026

A Comprehensive Guide to PoE Transformers: Design, Impact, and Strategic Solutions

This comprehensive guide explores PoE transformers (Power over Ethernet), essential components for delivering both data and DC power over a single cable. We analyze the shift toward high-power IEEE 802.3bt (PoE++) standards, address critical thermal management and magnetic saturation challenges, and provide manufacturer-level solutions for robust network device design.

May 26, 2026

Why Nanocrystalline Cores Are Rarely Used in High-Frequency Transformers

In the world of magnetic core materials, nanocrystalline cores are often praised for their high saturation flux density, excellent temperature stability, and low core loss—especially in medium to low-frequency power conversion applications. However, when it comes to high-frequency transformers, particularly those operating above 100 kHz, nanocrystalline materials are rarely the first choice. So, why are nanocrystalline cores seldom used in high-frequency transformers? This article explores the material’s physical limitations, design challenges, and cost-performance considerations in detail.

May 18, 2026

Frequently Asked Questions

Send an inquiry—Communicate requirements—Engage with a professional engineer—Research and design—Quotation—Sample—Pilot production—Mass production

  1. Provide samples for our disassembly analysis.
  2. Provide the product specification document.
  3. Provide electrical parameter requirements (such as current, voltage, power, frequency, inductance), product size specifications, circuit diagrams, transformer pinout diagrams, and special process requirements. [For specific information, please contact us.]

Yes, we are an innovative electronic component manufacturer integrating R&D design with production. We have the capability for independent research and development. Our R&D team consists of over 20 professionals, ensuring to address all customer needs from the design and development phase through to after-sales service.

During the sample phase, we provide detailed test reports for customer reference to ensure that all electrical parameters meet the customer's requirements. In the pilot production phase, we provide a detailed specification document for customer approval, and production will only commence after customer confirmation. During the mass production phase, we have a professional quality assurance team of over 30 members, covering all inspections from raw materials to finished products. At the same time, we are equipped with approximately 100 inspection machines, covering inspections from appearance to various parameter tests, to ensure the product's pass rate.
Yes, we can provide samples or prototypes, but the samples are subject to a charge. If a pilot production order is placed within one month of receiving the samples, we will credit the sample fee against the payment for the order. Typically, the sample design cycle is within one week.

It depends on the material's MOQ (Minimum Order Quantity). Generally, the MOQ is set between 3,000 to 5,000 pieces. However, before proceeding to mass production, we are happy to support small-scale pilot production runs, such as 500 to 1,000 pieces.

This depends on the production schedule of our manufacturing department. Generally, the first pilot production or batch production will take about 3 to 4 weeks to complete; subsequent mass production orders can be completed within 2 to 3 weeks.

Our Mission

Our commitment to innovation and industry best practices enables us to drive efficiency, foster growth, and contribute to our clients’ long-term success.

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