OHMITE

Power resistors and thermal management

 

About the manufacturer

Ohmite Manufacturing began operating in Chicago, United States, in 1925. Its founder, David T. Siegel, initially made carbon and wirewound resistors for the expanding radio industry. Over time the company specialised in power resistors and solutions for high-current, high-voltage and high-energy applications. It also expanded its capabilities through acquisitions of specialist resistor technologies. Today the brand serves industrial, energy and other equipment requiring robust resistive components and effective heat dissipation.

The main technical solutions associated with OHMITE include high-power resistors, wirewound resistors and current-sense resistors. High-power resistors and heating elements dissipate electrical energy as heat or provide controlled circuit loading. Performance depends on dissipation and ambient or housing temperature. Industrial uses must account for transient overloads and mounting.

 

Applications

OHMITE solutions are relevant to applications where component characteristics must be matched to the final equipment:

  • test loads
  • motor braking
  • power electronics
  • measurement circuits
  • industrial automation
  • resistive heating

 

OHMITE products available from Maritex

The Maritex catalogue range listed under OHMITE focuses on the following product groups: high-power resistors; wirewound resistors; current-sense resistors. Individual models may differ in electrical specifications, mechanical construction and integration requirements.

Available product groups include:

  • high-power resistors
  • wirewound resistors
  • current-sense resistors
  • heatsinks and thermal accessories

Check resistance, tolerance, continuous and pulse power, temperature coefficient and cooling. Published ratings often assume specific mounting conditions. The exact variant should always be selected using its full part number and model-specific documentation.

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