Ohmite Resistors & Rheostats

Passive Components > Ohmite

Ohmite Manufacturing Company has been a trusted leader in resistive products for high current, high voltage, and high energy applications for over 95 years. Their product range includes wirewound, wire element, thick film, and ceramic composition resistors.

Founded in 1925 by David T. Siegel in Chicago, Ohmite originally focused on producing carbon and wirewound resistors for the radio industry. As electronics evolved, Ohmite adapted, expanding its offerings and moving to a new facility in Skokie, Illinois, in 1953.

Through strategic acquisitions, including Memcor-Truohm and Ward Leonard Resistors in the 1990s, as well as Vishay’s divisions in 2006, Ohmite continued to broaden its capabilities. In 1998, Ohmite became part of Heico Companies LLC, leading to a relocation of operations to Matamoros, Mexico, while maintaining its headquarters in Rolling Meadows, Illinois.

With a global distribution network, Ohmite serves industries such as industrial, medical, military, and aerospace, providing cutting-edge power resistors and continuing to develop new technologies for modern circuit designs.

Ohmite has been the leading provider of resistive products for high current, high voltage, and high energy applications for over 90 years. The company’s full complement of resistor construction includes wirewound, wire element, thick film, and ceramic composition.

Ohmite – Passive Components

Ohmite Manufacturing Company has been a leading provider of resistors for high current, high voltage and high energy applications for over 80 years. Their full complement of products includes wirewound potentiometers, wire element, thick film, and ceramic composition resistors, in addition to variable voltage controls.
Ohmite has recently introduced a comprehensive line of board-level heat sinks for both surface mount and thru-hole applications. Ohmite heat sinks not only compliment Ohmite’s heat sinkable thick film power resistors, but can also be used in conjunction with any of the following resistor or semiconductor packages: TO-220, TO-247, TO-263 (D2), TO-264, TO-268 (D3), TO-252 and DT2. Ohmite heat sinks feature innovative patent-pending designs, which enhance thermal management performance over traditional heat sinks.

Products: Ohmite Manufacturing Company is a well-known manufacturer of electronic components, primarily known for producing resistors. Established in 1925, Ohmite has a long history in the electronics industry and has built a reputation for providing high-quality resistors and related products.

Resistor Types:

Power Resistors: These resistors are designed to handle high levels of power and dissipate heat efficiently. They are used in applications where significant power dissipation is required, such as motor controls, power supplies, and industrial equipment.
Precision Resistors: Precision resistors are engineered for accuracy and stability in terms of resistance values. They are used in circuits where precise resistance values are critical, such as calibration equipment and measurement devices.
Variable Resistors (Potentiometers): Potentiometers are adjustable resistors that allow users to manually vary the resistance. They are commonly used for volume control and other applications where adjustable resistance is required.

Ohmite specializes in the design and production of various types of resistors, including power resistors, precision resistors, variable resistors (potentiometers), and resistor networks. They offer a wide range of resistor technologies to meet the diverse needs of industries such as electronics, automotive, industrial, and telecommunications.

Ohmite Resistors & Rheostats

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