MH&W International is a distributor of passive components. Through our association with TDK and Epcos, we have become a broadline distributor having the capability to handle all components from TDK and Epcos. Our preferred product is magnetic material: ferrite cores and accessories, powder cores and Nanocrystalline (Nanoperm®).
Overview Resources
- Material Selection Guide
- TDK and Epcos Ferrite Cores
Selection guide and specifications. - Documents and Datasheets
Specific core catalog pages, datasheets and other reference materials.
Ferrite Cores
TDK and TDK-EPCOS
The most technically advanced manufacturers in the world.
- PC47/PC90/PC95 (Power)
- N97/N92/N95 (Power)
- HF90/T35 (CMC)

The largest manufacturer of ferrites in the world.
- TP4D/TP4F/TP5B (Power)
- TBP22/TPW33 (Power)
Powder Cores
Chang Sung (CSC)
The world’s largest producer of powder cores.
- Including Sendust, MegaFlux, HighFlux and MPP
- Core Shapes: Toroids, EE/ER/EER, EQ, Block/Ellipse
Nanocrystalline Cores
Magnetec
Premier producer of Nanocrystalline Cores in the world.
- Cores for:
- Common Mode Choke
- EMI Filter
- Current Transformer
- Motor Bearing Protection
- Smart Grid Metering
- Noise Spike Killer
Bobbins & Accessories
Norwe, Win Shine and Pin Shine
- Thermoplastic Bobbins from China and Germany.
- Thermoset Bobbins from Germany.
Soft Magnetics
CM Technology
Specialist in supplying non-standard ferrite shapes and sizes as well as non-standard bobbins.
- Core Shapes:
- UU Cores(3.0 – 6.0in)
- EE Cores(3.0 – 8.0in)
- Toroids(3.0 – 6.0in)
- Amorphous Beads
- Clamp-on EMI Filters