Arcol Ohmite

Arcol Ohmite

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Manufacturing resistors for high power, high energy, and high voltage applications for over 100 years

Founded in 1925 by David Siegel as a small shop on the west side of Chicago focused on manufacturing carbon and wirewound “lug” resistors for the growing radio manufacturing industry. As the needs of the electronics industry grew and continued to develop, Ohmite continued evolving to service ever-changing design requirements. 100 years after its founding, Ohmite remains a leading provider of resistive products for high current, high voltage, and high energy applications. Strengthened by the backing of Heico Companies LLC, Ohmite strives to maintain the flexibility needed to handle both large and small requirements. Made to order parts are always considered and new technologies are always being evaluated. Product availability in today’s market is critical to the success of our customers. Ohmite’s network of international distributors and sales representatives enables us to fulfill the requirements of an increasingly global marketplace.

Proven Technology Solving Resistive and Thermal Problems

Ohmite resistors offer proven solutions for common problems faced by design engineers. Ohmite Manufacturing is a trusted leader in the design and production of high-performance resistive solutions, delivering exceptional quality, reliability, and innovation across a wide range of applications. With decades of engineering expertise, Ohmite consistently provides products that meet the demanding requirements of industries such as industrial, transportation, medical, energy, and defense.

Our portfolio spans advanced wirewound, thick film, and ceramic-based technologies, ensuring optimal performance in high-power, high-precision, and high-reliability environments. Customers value Ohmite not only for product excellence, but also for our commitment to technical support, customisation, and rapid responsiveness.

By combining robust manufacturing capabilities with a deep understanding of application-specific challenges, Ohmite enables customers to achieve superior system performance and long-term reliability. Our focus on continuous improvement and innovation ensures we remain a preferred partner in an evolving global marketplace, delivering solutions that power critical systems and drive technological progress forward.

Aluminum Housed Resistors from Arcol Ohmite

Aluminum housed resistors from Ohmite/Arcol
  • Wirewound resistor inside an alumnum housing for extra power dissipation, greater ingress protection and easier mounting
  • Designed for direct heatsink mounting to achieve maximum thermal performance
  • Wound to maximize High Pulse Capability
  • Available in non-inductive versions as well

Precision Thick Film Slim-Mox Series

Ohmite's Slim-Mox provides stable performance for a wide range of resistance values, with voltage ratings up to 25K. Silicone and epoxy versions are available. Low-temperature coefficients are available for high stability circuit applications. The space-saving planar package offers an alternative to tradtiional high voltage resistors.

Ohmite's Force Sensing Resistors - FSR Series

Ohmite's FSR series exhibits the unique charactersitic of dynamic resistance related to the amount of applied force. In general applictions, the more force applied to the surface of the sensor, the lower the resistance. The resistance change is inversely proportional to the applied force. Force Sensing Resistors offer many benefits for HMI (Human Machine Interface) sensing in a wide range of markets and applications versus mechanical switching or capactive sensing.