Ohmite has maintained a leadership position in the design and manufacture of Power Resistive Products since 1925. Through innovation and acquisition Ohmite's offering has grown to include power resistors, surface mount resistors, and rheostats. Ohmite will continue to develop new technologies and packaging techniques to meet the demand of the changing market far into the future.
Ohmite MCS Series Current Sense Resistors utilize resistive metal alloy mOhm technology. The SMD MCS Series metal element current sense resistors from Ohmite also offer a 96% alumina substrate thermo dissipation protective layer, Cu terminal electrode with Pb free termination (60% Sn, 40% Ni), and ulta-low resistance values from 0.005Ω-0.05Ω. MCS series resistors have power ratings of 1 and 2 watts and standard resistance values from 5mΩ-50mΩ. These resistors are utilized in industrial electronics and power electronics.
Ohmite IS Series Power Resistors are constructed as rugged ultra-low profile thick film components. The IS Series Power Resistors from Ohmite offer heatsink capability under the proper conditions, in addition to high power (175W to 270W), pulse handling capability, low inductances, non-flammability, and fast-on terminals and leads. This series has resistance range from 5Ω to 10KΩ.
Ohmite BA Series Aluminum Cased Resistors are high power wirewound components that offer multiple wattages up to 1KW and heatsink capability. Three extrusion forms, thermal cut-off, and scalable, custom lengths and leads are all available with the ruggedly designed BA resistor series from Ohmite.
Ohmite C40 Series Heat Sink System offers flexible, high performance, and compact heat sinks with an exchangeable cam clip system for TO-247, TO-264, and SOT-227 (clip in development) devices. This powerful heat sink can be thru-hole soldered in single or paired configurations. The paired unit has mounting holes to accommodate a 40mm x 40mm fan. Ideal applications for Ohmite C40 Series Heat Sink System include high power density and small size (1U or 2U) electronic packaging with forced convection.
Ohmite TP High Energy Resistors offer non-inductive performance, high power density, low inductance, and wide resistance range. As an added feature, TP High Energy Resistors provide the impulse energy capability normally associated with wirewound or composition resistors. Doublesided screen printing of pulse-tolerant thick film ink, coupled with a sophisticated scan-cut laser trimming process, maximize the energy withstanding capabilities of the Ohmite TP High Energy Resistors.
Ohmite RW Series Wirewound Resistors feature 5W power and finned design that facilitates cooling, and offer high power density, wide resistance range, tight tolerance, and low TCR. RW Series Wirewound Resistors offer an operating temperature range of -55º C ~ +155º C, temperature coefficients of 0.1Ω ~ 0.99Ω at ±90ppm, 1Ω ~ 10Ω at ±50ppm, and 10Ω+ at ±20ppm, resistance range of 0.1 Ω ~50K, and non-inductive range of 0.1Ω ~12.5K.
Ohmite has expanded the FC4L 4-Terminal Current Sense Resistor Series to
include a 2-watt package (6.4 x 3.2mm) size in addition to the 5-watt
size. Ohmite has extended its FCSL Series product line with the 4-terminal, foil-type FC4L Series Current Sense SMD Resistors. The FC4L Series resistors from Ohmite have a foil construction that ensures a very stable TCR (Temperature Coefficient of Resistance) in a 5 watt package. In addition, FC4L resistors have a built-in Kelvin connection and 4-terminal design, which includes 2 larger electrodes capable of carrying large currents and 2 smaller electrodes for current measurement.