Ferrites
July 24, 2025
TDK introduces various large-size ferrite cores with different shapes for a wide range of industrial applications
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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.
For simulation, TDK offers the Ferrite Magnetic Design Tool. This is free of charge.
* As of July 2025, according to TDK research
Features & Applications
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
Further information on the products can be found at www.tdk-electronics.tdk.com/en/ferrites_large_size
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About TDK Corporation
TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on a foundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at the forefront of technological evolution. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK’s comprehensive, innovation-driven portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads, software and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics, and TDK-Lambda. TDK focuses on demanding markets in automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2025, TDK posted total sales of USD 14.4 billion and employed about 10,5000 people worldwide.