TDK introduces various large-size ferrite cores with different shapes for a wide range of industrial applications

July 24, 2025

TDK Corporation (TSE:6762) presents a variety of new large-size ferrite cores with different core shapes, making this the industry’s largest lineup of shapes, sizes, and materials for such large cores*. These are used in a wide range of industrial applications such as motor drives, EV charging stations, various railway/traction applications, power transformers, welding, medical, uninterruptible power supplies (UPS), solar inverters, and other renewable energy applications. These cores allow for optimizing magnetic design for efficiency and thermal performance.

The new standardized large-size core program contains E, U, I, PM, and PQ cores in the N27, N87, N88, N92, N95, and N97 power materials. Accessories like coil former and mounting hardware are available.

* As of July 2025, according to TDK research

Main applications

• Traction and railway
• EV and battery charging
• Renewable energies (wind/solar)
• Energy storage
• Welding
• Medical

Main features and benefits

• Significantly increased power
• Low losses at high switching frequencies
• Low losses at high temperatures (+100 °C to +140 °C)
• Coil former for multiple stacked E-cores