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Open Coil Heating Elements

(Mica Heaters & Ceramic Heaters)

JenTer Open Coil Heaters are available with custom design modifications or add-on features and sensors. JenTer typically builds to order, but we regularly meet expedited customer delivery requests. We also assist customers with demand analysis and determining proper inventory levels to ensure uninterrupted production. Please contact us to discuss your product specifications and requirements today!

Free Open Coil Heaters Download

Advantages of Open Coil Heaters

Open coil heating elements remain one of the most popular heating elements in use today. Whether utilizing nickel/chrome or iron based alloys, open coil heating elements provide controllable electric heat in a variety of residential, commercial and industrial applications.

JenTer Technologies, can produce these heaters on ceramic or mica forms using AWG 16 to AWG 40 gauge wire. 600VAC Maximum. These elements typically contain one or more resistance coils, a thermostat and a thermal fuse. Some complete assemblies will contain voltage dropping coils to provide a low voltage source for PM motors.

Features & Benefits

  • Economical
  • Robust
  • Custom sized
  • Compact
  • Long field life
  • Low development cost
  • Minimal tooling
  • Higher wattage density

Temperature Range

Alloy 650 – 1200 °C (2190°F)

Alloy 675 – 1125 °C (2055°F)

Custom Alloys Available


  • SJO/HPN/SJT Power Cords
  • Thermostats
  • Thermo-cutoffs (TCO)
  • External lead termination
  • Ceramic or Mica Forms

Featured Mica Heaters

Get in touch! We’ll provide samples and work with you to meet your requirements!