岳 – LPema – Page 2 Of 10

What IATF 16949 Actually Means for Magnetic Component Manufacturers

Jun 22, 2026

How to Write a Custom Transformer Specification That Suppliers Actually Understand

Jun 15, 2026

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

Professional-surface-mount-PoE-transformers-integrated-into-a-high-speed-network-switch-PCB-next-to-RJ45-ports

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