
Chassis mount resistors, also referred to as panel mount fixed resistors, are used to limit the flow of electricity in an electrical circuit (resistance). They are a type of [fixed resistor](/web/c/passive-components/fixed-resistors/) which means the resistance is set at a specific value and can't be changed. Resistors are important because they help to prevent damage or destruction of other circuit components. Check out our handy [LED Resistor Value calculator](/web/content/discovery/tools-and-calculators/led-resistor-calculator) to determine what resistor value you require for your LED lighting.

### Why use chassis mount resistors

Chassis mount resistors feature a wire wound design (metallic wire is wound around a core of non-conductive material to reduce or restrict the flow of electric current) with a metal (usually aluminium) housing that provides heat conduction. They may also have flameproof construction or a corrugated ribbon element to allow for rapid cooling.

### Where would you use a chassis mount resistor

Chassis mount resistors are commonly used for large electrical and production machinery, motor start or stop cycles, equipment discharge, load test simulation and dynamic braking.

Chassis mount resistors are also particularly suited for applications where the resistor is used to promote heat loss and cooling, because of its low temperature coefficient of resistance (TCR) – in other words, its resistance remains nearly constant over a wide range of temperatures.



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Vishay, 3Ω 50W Wire Wound Panel Mount Resistor RH503R000JS03 ±5%

Vishay, 150Ω 50W Wire Wound Panel Mount Resistor RH050150R0FE02 ±1%

Vishay, 47Ω 50W Wire Wound Panel Mount Resistor RH05047R00FE02 ±1%

Vishay, 2Ω 50W Wire Wound Panel Mount Resistor RH0502R000FE02 ±1%

TE Connectivity 500W Wire Wound Panel Mount Resistor HCH335J82RJ 5%

TE Connectivity 500W Wire Wound Panel Mount Resistor HCH335J68RJ 5%

TE Connectivity 400W Wire Wound Panel Mount Resistor HCH265J68RJ 5%

TE Connectivity 500W Wire Wound Panel Mount Resistor HCH335J100RJ 5%

Danotherm Panel Mount Fixed Resistors

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