PRODUCTS Custom Magnetic Transformers Custom Toroidal Components SERVICES Product Design Engineering ACQUIRED COMPANIES Badger Transformer Co. Mag-Con Engineering Sub-Tronics Nicollet Technologies Transformers, Inc. Tranex Bey Electronics  

Custom Toroidal Components

Product Specifications

  • Core Material: Ferrite, Powered Iron, Silicon Steel, Nickel Steel, MPP, High Flux Kool Mu, Nanocrystalline, Metglas
  • Diameter: 0.5" through 15"
  • Height: 0.5" through 6"
  • Wire Size: #8 through #42
  • Various termination and mounting options
  • Built with UL Recognized Insulation System
  • Specialized finishing available


Core Materials

Kool Mu
Nickel Steel
Powdered Iron
Silicon Steel

Core Types

High Flux Kool Mu
Nickel Steel
Powered Iron
Silicon Steel


.5 to 15 inches


.5 to 6 inches

Wire Sizes

8 - 42 gauge


Badger Magnetics toroids are custom designed for use as:

  • Power transformers
  • Isolation transformers
  • Current transformers
  • Pulse transformers
  • Chokes/Inductors
  • Magnetic Amplifier Components
  • Inverter/Converter Components
  • Power Supply Components
  • A wide range of end-user applications including: defense, crane controls, power conditioning, motor and industrial controls, medical, audio equipment, video monitors, power supplies, and specialty lighting


Badger Magnetics toroids offer:

  • Smaller sizes and lighter weights than E-I transformers
  • Flexible dimensions and mounting configurations
  • Improved efficiency, reduced power consumption
  • Minimized audible noise
  • Minimized flux leakage
  • Low magnetic field interference
  • UL, CSA, CE, TUV and other component recognition available
  • ITAR Registered
  • ISO 9001:2008 in our Colorado location


  • Samples: 1-2 weeks on average
  • Production: 3-6 weeks
  • Versatile Manufacturing Schedule

Customer Requirements and Economy

  • Competitive pricing
  • Manufactured quantities from 1 to required quantity
  • All units engineered to customer requirements
  • Prompt Engineering and Applications Support
  • Made in the USA and Off-Shore
Transformers, Inductors & Custom Wound Products IEEECanadian Standards AssociationCEThe Transformer Association