Nanocrystalline cable cores for effective EMC interference suppression

Ensuring electromagnetic compatibility (EMC) is of crucial importance in the modern digital supply chain and in increasingly compact electronic systems. To offer developers more flexible and efficient solutions, Würth Elektronik is now expanding its portfolio of conventional MnZn and NiZn ferrite cores with the nanocrystalline cable cores of the WE-NCC series. This innovation is aimed at the broadband suppression of conducted electromagnetic interference.

Technical properties and material advantages
The WE-NCC series is characterized by a significantly higher low-frequency impedance and a more broadband impedance behavior than conventional MnZn and NiZn ferrite cores. The advanced nanocrystalline material enables smaller core dimensions with equivalent or even better insertion loss, which also leads to a significant weight advantage in the final application.

The specifications of the series include cable diameters from 3.7 to 21.1 mm, an initial permeability of 30,000 to 90,000, a magnetic flux density of up to 1.2 T, as well as a Curie temperature of over 540 °C. These properties guarantee extremely stable magnetic behavior over a wide temperature range and enable effective filtering across a very broad frequency spectrum.

Application areas and comprehensive EMC support
Due to their compact design and high temperature stability, the new cable cores are ideally suited for demanding industrial and energy applications. The main areas of application include industrial electronics, inverter technology, wind turbines, frequency converters, and complex motor drive systems.

As a complement to the hardware, Würth Elektronik offers comprehensive design-in support. Developers can utilize the REDEXPERT online tool to precisely select the appropriate ferrites based on the required impedance. Furthermore, all interference suppression solutions are available directly from stock without a minimum order quantity, with free samples provided upon request to accelerate prototype development.

Additional Context: This section details technical specifications and competitive benchmarking not included in the original product announcement
In the global market for EMC components, the demand for nanocrystalline materials is growing, as conventional ferrites often reach their saturation and temperature limits in modern, densely packed high-performance environments. In this segment, the WE-NCC series from Würth Elektronik competes directly with established solutions such as the VITROPERM series from Vacuumschmelze, the nanocrystalline toroidal cores from KEMET, and the interference suppression components from TDK.

The technical distinction of the WE-NCC series lies in the combination of extremely high initial permeability and direct integration into the digital design tool REDEXPERT. While Vacuumschmelze focuses heavily on customized strip thicknesses for specific industrial customers and KEMET places an emphasis on strict automotive certifications, Würth Elektronik allows engineers an immediate real-time simulation of attenuation values for specific cable diameters. Although TDK offers broad housing integration for its cores, the seamless software support from Würth Elektronik significantly shortens the design cycle for high-performance filters and optimizes component selection for environments where weight reduction and thermal stability are critical factors for success.

Edited by Maria Brueva, Induportals editor – adapted by AI.

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