TDK Expands Ferrite Core Range for High-Power Industrial Applications

TDK has launched an expansive new range of large-size ferrite cores designed to support next-generation industrial power systems. Covering everything from EV chargers to railway traction systems, the updated lineup offers one of the industry’s broadest selections of core shapes, materials, and sizes for high-power magnetic design.

The new program includes E, U, I, PM, and PQ core geometries, standardised in materials like N27, N87, N88, N92, N95, and N97. These materials are known for delivering high performance in demanding conditions, offering low core losses even at elevated switching frequencies and high ambient temperatures.

Designed for Efficiency and Thermal Performance

For engineers focused on efficiency and thermal management, this range enables more precise magnetic design. The cores are suitable for a wide array of high-power applications, including energy storage systems, solar and wind inverters, welding equipment, medical devices, and uninterruptible power supplies (UPS). Railway and traction engineers will also find the larger E-core options particularly relevant, especially with the option to stack them using TDK’s compatible coil formers and mounting accessories.

High thermal stability is another key strength of the lineup. With operating performance maintained between +100 °C and +140 °C, these cores are well-suited to environments where passive cooling is limited or where space constraints make thermal efficiency critical. According to TDK, as of July 2025, no other manufacturer offers such a comprehensive combination of core sizes, materials, and shapes in this segment.

Application Areas

• Traction and railway systems
• EV and battery charging infrastructure
• Renewable energy (wind and solar)
• Energy storage units
• Welding equipment
• Medical power systems

Key Features

• Low core losses at high switching frequencies
• Reliable performance at elevated temperatures
• Scalable power handling
• Coil formers for stacked E-core arrangements

To learn more or read the original press announcement, click here.

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