Designed To Withstand Demanding Environments

We build custom applications for many industries including the ones with tough, demanding Aviation and Marine environments. We know special consideration must be given to vibration, moisture, weight, contamination and qualification. Unique winding configurations, high-efficiency cores, high-strength and non-nutrient encapsulants.

That's why we work collaboratively with you and your technical personnel to to develop the optimal solution for your complex requirement.

Example Types of Aviation & 400Hz Inductors & Chokes

  • 3-phase
  • MIL-PRF-27 design
  • Military and Aerospace
  • Sealed / Encapsulated / Molded
  • Litz and Copper Foil Windings / Amorphous and Specialty Material Cores

Recent Work

  • Three-Phase AC Reactor - 3KVAR @ 400Hz (Model 216037)
    This AC Inductor is one of a family of parts designed for airport ground support test equipment. Used on a 400Hz, 208V line-line power system (120V line-neutral), this reactor is constructed using 10AWG rectangular magnet wire assembled on a specialty M2 electrical grade shunt steel core and non-magnetic aluminum brackets. Class H (180C) insulation system.
  • 3 Phase DC Differential Mode Power Inductor (Aviation Power)
    This custom three-phase DC power inductor is used in the Auxiliary Power Unit in a commercial aviation platform. 50uH, 125A/ph, 15kHz Tape-Wound E-Core, 0.010 Copper Foil Windings, High-Temperature Teflon Leads, Class H (220C) insulation. Insulation resistance, 40Mohm (min) @ 500Vdc. Manufactured in Canada.
  • Coupled Inductor
    2.0mH, 18A, 15 KHz Tape-Wound Amorphous Alloy C-Cores, Specialty Brackets, Teflon Leads
  • Encapsulated Toroidal inductor
    2mH, 1A, 400Hz High Flux Powder Cores, Epoxy Cast, Threaded Standoff for Mounting
  • Coupled Inductor
    2.2mH, 25A, 15 KHz Tape Wound Nickel Ferrite Core, Class H insulation

Power Done Perfectly

On the ground, in the air or on the water. Contact us with your requirements.

Get Started!

Aviation and 400Hz Inductors and Chokes Capabilities at Electronic Craftsmen

  • Inductance: uH to H
  • Currents to 1100A nominal, AC or DC
  • AC Ripple Current and Harmonics accommodated to specification
  • Working Voltage up to 15kV (depending on frequency); multiple stages possible for higher outputs
  • Frequency: 25Hz to 1200Hz (typical)
  • Temperature Class to 220C (155C / Class F typical)
  • Weight: 0.06 oz / 1g to 550 lbs / 250kg
  • Multiple taps as required
  • Dielectric Strength (hipot) to 30kVac or 20kVdc
  • Parts can be vacuum varnished or molded with a variety of hard or soft encapsulant materials with thermal conductivity.
  • Wire sizes from 1-45 AWG or Copper Foil to 0.050in thick (in multiple layers for higher current); Litz wire for higher frequency
  • Regulation to specification
  • Manufactured using all known state-of-the-art magnetic core materials, including but not limited to electrical grade steel laminations, ferrites & powdered iron, nickel-iron alloy, iron amorphous metal strip-wound cores, nanocrystalline cores and small toroids.
  • Antifungal and non-nutrient coatings available
  • Corrosion resistant coatings & platings available
  • Standard or custom terminations & leads
  • Mounting Configurations: pcb-mount (horizontal or vertical), custom or standard brackets or stacked configurations
  • Designed to meet CSA & UL (safety) or MIL PRF 27 (aerospace / military) requirements upon request
  • MIL PRF 27 Grade 5 & 6 encapsulation available