Nanocrystalline Cores

As the North American partner for Magnetec, MH&W International provides industry-leading nanocrystalline solutions that solve the most demanding electromagnetic and power challenges. By leveraging the unique properties of Nanoperm^®, we offer a comprehensive suite of cores and chokes—including the high-saturation LM and LC series, specialized Cut Cores, and SafeBlue^® sensors—designed to outperform traditional ferrites in every critical metric. These advanced components enable engineers to achieve up to a 60% reduction in component volume while maintaining superior thermal stability and broadband attenuation in high-frequency applications.

Nanoperm

Magnetec’s Nanoperm^® is a rapidly solidified iron-based alloy featuring a fine-grained crystalline structure with typical grain sizes of only 10 nanometers. This nanocrystalline architecture grants the material extraordinary soft magnetic properties, allowing for a tunable permeability range from 1,000 to 200,000 through specialized magnetic field heat treatments.

Application Note

Nanoperm EMI Cores

Magnetec’s standard cores leverage Nanoperm^® nanocrystalline material to combine high permeability with minimal high-frequency losses. These versatile components are ideal for common mode chokes, high-precision energy meters, and motor bearing current suppression. By supporting SMPS transformers and RCD sensors, they provide reliable, high-performance solutions for a wide range of applications.

Product Table

Nanoperm LM Cores

Magnetec’s Nanoperm LM^® (Low Mu) cores are specifically designed for DC-biased applications, offering significant advantages over traditional ferrites in EMC filters for high asymmetric interference currents, such as inverter drives. With permeability levels ranging from 1,000 to 8,000, these cores provide a threefold higher saturation flux density.

Product Table

Nanoperm LC Cores

Magnetec’s Nanoperm LC^® (Low Cost) cores are specifically engineered for compact common mode filter chokes, delivering maximum attenuation using a minimum of core material. As a superior alternative to ferrite-based solutions, they provide high and uniform attenuation, increased leakage inductance, and mechanical stability in a smaller, lighter build.

Product Table

Nanoperm Cut Cores

Magnetec’s nanocrystalline cut cores outperform traditional grain-oriented electrical sheets by offering superior functionality at higher frequencies and temperatures up to 180°C. These cores enable a smaller form factor than ferrite. reduce noise in transformers, and feature a split design that simplifies retrofitting to mitigate motor bearing currents.

Brochure

EMC Chokes

Magnetec’s single and three-phase current-compensated EMC chokes utilize nanocrystalline Nanoperm^® material to deliver outstanding insertion loss with a minimal section height. These designs reduce volume requirements by up to 60% compared to traditional ferrite core chokes of the same nominal data, making them ideal for space-critical applications.

Brochure

SafeBlue

Magnetec SafeBlue^® is an advanced AC/DC sensitive differential current sensor designed for high-precision leakage current detection in electric vehicle (EV) charging infrastructure. It integrates a high-permeability nanocrystalline core with a dedicated evaluation unit to simplify the implementation of safety standards in wallboxes and charging cables.

MB-67 Brochure Application Note

As electromagnetic demands rise with miniaturization, MH&W’s Cores & Components Division provides the expertise and Nanoperm^® materials necessary to optimize EMI performance. Contact our engineers for technical support on nanocrystalline solutions, request an RFQ for custom designs, or browse our extensive inventory for high-efficiency cores and chokes.