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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 Current Sense Resistors Ohmite Heatsinkable Resistors Ohmite Heatsinks
 
Ohmite Newest Products

Ohmite Product Line

Ohmite New Products

Added 09/2014 Ohmite B60/C60 Series Heat Sinks Learn More
Added 12/2013 Ohmite Maxi-Mox Precision Thick Film Axial Terminal Resistors Learn More
Added 12/2013 Ohmite IS Series Ultra-Low Profile Power Resistors Learn More
Added 11/2013 Ohmite BA Series Aluminum Cased Resistors Learn More
Added 10/2013 Ohmite MCS Series Metal Element Current Sense Resistors Learn More
Added 10/2013 Ohmite TDH Series 35W DPAK Resistors Learn More
Added 09/2013 Ohmite WFH Series Wirewound Resistors Learn More
Added 09/2013 Ohmite 89 Series Metal-Mite®Resistors Learn More
Added 09/2013 Ohmite Metalohm Series Resistors Learn More
Added 09/2013 Ohmite TAH Series Encapsulated Resistors Learn More
Added 09/2013 Ohmite TL Series Modular Heat Sinkable Power Resistors Learn More
Added 09/2013 Ohmite TCH35 Series Thick Film Power Resistors Learn More
Added 09/2013 Ohmite HS-HSN Series Wirewound Resistors Learn More
Added 06/2013 Ohmite RW Series Wirewound Resistors Learn More
Added 06/2013 Ohmite TP High Energy Resistors Learn More
Added 01/2013 Ohmite SV-LED Series Heat Sinks Learn More
Added 01/2013 Ohmite CP4 Series Heat Sinks Learn More
Added 09/2012 Ohmite WH/WN Series Wirewound Resistors Learn More
Added 04/2012 Ohmite R2 Series Heatsinks Learn More
Added 03/2012 Ohmite HVC Series Thick Film Resistors Learn More
Added 03/2012 Ohmite S Series High Current Shunts Learn More
Added 03/2012 Ohmite A Series Ceramic Composite Resistors Learn More
Added 01/2012 Ohmite Ohmite C Series Heatsinks Learn More
Added 09/2011 Ohmite FC4L Series 4-Terminal Current Sense SMD Resistors (Foil Type) Learn More
Added 09/2011 Ohmite Assorted Resistor Cabinet Kits Learn More
Added 04/2011 Ohmite TAP Series Heat Sinkable Planar Resistors Learn More
Added 04/2011 Ohmite S Series LED Heatsinks Learn More
Added 04/2011 Ohmite TAP2000 Series Heat Sinkable Planar 2000W Resistors Learn More
Added 12/2010 Ohmite F and R Series Heatsinks for TO-218/220/247 Learn More
Added 09/2010 Ohmite E Series Heatsinks for TO-220 Devices Learn More
Added 08/2010 Ohmite M Series Dual Clip Heatsinks for TO-264 and TO-247 Learn More
Added 04/2010 Ohmite D Series Heatsinks Learn More
Added 04/2010 Ohmite TAP800 Series 800 Watt Heat Sinkable Planar Resistor - New At Mouser! Learn More
Added 04/2010 Ohmite 100 Watt TO-247 Thick Film Power Resistor Learn More
Added 10/2009 Ohmite W Series Heatsinks for TO-220 and TO-247 Power Resistors Learn More
Added 05/2009 Ohmite Metal Element Current Sense Resistor Series: MCS Learn More

Ohmite Featured Products

Ohmite B60/C60 Series Heat Sinks

Ohmite C60 Series Heat Sink System offers an improved Cam N Lock spring clip (pat. pending) in addition to flexible, high performance in a compact heat sink with exchangeable cam clip system for TO-220, TO-247, and TO-264 devices. The C Series' built-in lip provides mounting ease. The B60 Series Heat Sinks from Ohmite can be thru-hole soldered as a single or dual unit that can be mated to a 60mm fan for greater thermal performance. B60 series heat sinks are ideal for electronic packaging that exhibits high power density, small size (3U or 4U), and forced convection.

Ohmite S Series High Current Shunts

Ohmitehas expanded the S Series to now include a 60mV option. Ohmite S Series High Current Shunts were designed for applications ranging from 100 to 1000 amps, and are available in three configurations and 4 amp ratings (100, 200, 500 and 1000). All Ohmite S Series High Current Shunts are calibrated to 0.50% tolerance and have a 0.5% accuracy class. Ideal for green energy applications.

Ohmite FC4L Series 4-Terminal Current Sense SMD Resistors (Foil Type)

Ohmite FC4L 4-Terminal Current Sense Resistor Series includes 1, 2 and 5-watt packages.  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.

Ohmite Maxi-Mox Precision Thick Film Axial Terminal Resistors

Ohmite Maxi-Mox Precision Thick Film Axial Terminal Resistors are high voltage/high resistance components that offer wide resistance ranges, voltage range to 50KV, power rating to 12.5 watts, and silicone or epoxy coating with non-inductive available.

Ohmite EBW Series Manganin/NiCr Current Sense Resistors

Ohmite EBW Series Manganin/NiCr Current Sense Resistors have a resistance value of .0002 ohms, the lowest of any other Ohmite product thus far. The EBW series current sense resistors from Ohmite are manufactured using electron beam welding technology, which allows the joining of different alloys with great accuracy and tolerance. This series has heavy copper connectors, excellent long-term stability, and low inductance and can tolerate soldering temperatures of 350ºC for 30 seconds or 250ºC for 10 minutes. EBW series resistors can be mounted using re-flow soldering or welding on copper.

Ohmite MCS Series Metal Element Current Sense Resistors

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 Ultra-Low Profile Power Resistors

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

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 Heat Sink System

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

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

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.

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