Dear valued customer,

The current situation caused by the COVID-19 virus has multiple consequences in all aspects of our daily lives. It presents to us, as a company, with major challenges regarding both our customers, and our employees who remain our top priorities. It’s not just the playgrounds and public areas, restaurants, and theaters that must shut down, but also the companies, their partners, and suppliers that need to shoulder a tremendous amount of responsibility these days.

As your partner, we take our part in your supply chain very seriously. Therefore, please be informed that MH&W International is doing everything within its power to ensure minimal disruption in your supply chain caused by COVID-19. Due to possible disruptions in our own supply chain, and unpredictable circumstances with our employees’ families, please be aware of possible delays in our deliveries at least for the upcoming weeks.  Our warehouse is in full operation with a reduced staff capacity, to follow guidelines.

Following government declaration, your MH&W team is working out of our home offices.  Office phones are automatically routed to either our home office or cell phone lines.  In the event we cannot answer your call, please leave a message, and we will respond back in a very short period of time.

You may also send an email to SALES@MHW-INTL.COM and it will be routed to the appropriate staff member, or directly to your account representative.

We kindly ask for your understanding and wish you all the very best for you and your families. Please do not hesitate to contact us at any time should you have any further questions.

Your MH&W International Team.

MH&W International Corporation

  • Established in 1964 Exclusively to Serve the Needs of the Magnetic Industry

  • 56 Years of Ferrite Application Support

  • Official Sales Agent for TDK Ferrites in North America

  • Largest Inventory of TDK Ferrite in the World

  • Authorized Distributor for EPCOS Ferrites for Power Supplies, EMI/RFI Filters & Analog Filters

  • Authorized Distributor of ACME Ferrites for Power Supplies, EMI/RFI, Common Mode Chokes, Broadband Indusctors & Filter Inductors.

  • Authorized Distributor of TDG Ferrites for Power Supplies and EMI/RFI Applications

  • Master Distributor for Chang Sung (CSC) Powder Cores: MPP, High Flux, Sendust and Mega Flux Cores

  • Official Sales Agent for Magnetec GmbH to Provide Nanocrystalline Magnetic Materials

  • Official sales agent of Amorphous and Nickel Iron Cores


New Address:

575 Corporate Drive
Mahwah, NJ 07430-2330

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Latest News

MH&W’s Product Lines

Ferrite Cores Powder Cores Nanocrystalline Cores
TDK and EPCOS the most technically advanced manufacturers in the world
  • PC47/PC90/PC95 – Power
  • N97/N92/N95 – Power
  • HF90/T35 – CMC
ACME Ferrites
  • P4/P41 – Low Frequency Power
  • P45/P48 – Med Frequency Power
  • P5/P6 – High Frequency Power
  • A5/A10 – Common Mode Chokes
The world’s largest producer of powder cores.
  • Sendust
  • MegaFlux
  • HighFlux
  • MPP
Core Shapes:
  • Toroids
  • EQ
  • Block/Ellipse
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 and Accessories Soft Magnetics Amorphous and Nickel Iron Cores
  • Thermoset and Thermoplastic Bobbins from the original TDK tools
  • Thermoplastic Bobbins from China
  • Thermoset Bobbins from Germany
  • Thermoplastic Bobbins from Germany
Specialist in supplying non-standard ferrite shapes and sizes as well as non-standard bobbins.
  • UU core: 3.0 – 6.0 inch
  • EE Core: 3.0 – 8.0 inch
  • Toroid: 3.0 – 6.0 inch
  • Clamp-on EMI Filters
OEM supplier of Amorphous, custom nanocystalline, and 80% nickel iron alloy cores.
  • CC Amorphous Cut Cores
  • Amorphous Choke Cores
  • Amorphous Choke Cores with Air Gap
  • DC Current Immunity Composite Cores
  • Perm-Alloy Cores
Thermal – Kerafol Thermal – CSC Thermal – MHW
  • Gap Fillers to 6.0 W/mK
  • Silicone films to 8.0 W/mK
  • Silicone free films to 6.0 W/mK
  • Greases silicone and silicone free to 10.0 W/mK
  • Double sided thermal tape
  • Graphite films to 7.5 and 450.0 W/mK
  • All available in die cut pads
  • Low Silicone gap fillers to 3.0 W/mK
  • New Super Soft gap fillers to 3.0 W/mK
  • Hybrid Silicone film/gap filler to 3.0 W/mK
  • Combination EMI and Thermal Absorber films
  • EMI Suppressor films
  • All available in die cut pads
Thermal Consulting
  • Custom solutions
  • Thermal analysis
  • Build prototypes
  • Double sided thermal tape
  • Available in die cut pads