Electric Coil Design & Manufacturing

Johnson Electric Coil Company

Design & Manufacturing Capabilities

Quality Products made in Antigo, Wisconsin USA

Johnson Electric Coil Company takes a customized approach to every inquiry, design, and manufacturing process to meet your particular requirements using:

  • Wire sizes ranging from AWG 1/0 Square including rectangular shapes to AWG 40
  • Lamination center leg sizes from half inch to five inch standard sizes and shapes
  • Custom lamination sizes to nine inch center leg
  • Butt stacked, interleaved, gapped, and distributed gap core configurations
  • Strip wound toroidal and C cores
  • Ferrite and powder core construction for high frequency, high efficiency transformer and inductor applications
  • Customized winding configurations and taps, core geometries and orientation, winding terminations, connection options, mounting accommodations, size and shape—all to suit your special installation needs or limitations

Winding configurations

  • Toroidal—layer, random, or bank wound
  • Paper section multiple wound and single piece wound
  • Bobbin wound
  • Precision or perfect layer wound
  • Single or multiple conductor wound
  • Copper foil wound for high current and high frequency applications
  • Concentric, side by side, or interleaved windings, depending on electrical parameters, space limitations, and spacing requirements

Johnson Electric Coil Company does not make pad mount or pole mount transformers with high voltage inputs for distribution lines.

Types of products include:

  • Step down, Step up, and Straight Isolation Transformers
  • Auto Transformers
  • Power Transformers
  • High Voltage Transformers
  • High Reactance Transformers
  • Current Transformers
  • Buck Boost Transformers
  • Inverter Transformers
  • Interphase Transformers
  • Inductors
  • Chokes
  • Reactors
  • Product assemblies including transformers and other components
  • Single Phase and Three Phase
  • 50 Hz to High Frequency
  • Power ranging from fractional VA to 250 kVA
  • Primary voltages to 600 volts
  • Custom bus bars from 0.031” to 0.50”x4.00,” with bends to 85°

    Unified | Unselfish | Single Minded

    Outstanding Customer Service

    Design & Manufacturing Capabilities

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    We are happy to answer any questions you may have.
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