Unique-Bargains Aluminum Case Resistor 100W 3 Ohm 59mm Gold

Aluminium-cased 100 W wirewound resistor

This aluminium-housed wirewound resistor is rated at 100 W and 3 Ω with a 5 % tolerance. It is built for AC or DC circuits that need stable, accurate resistance such as LED replacements, converters, inverters and motor-speed controls. The aluminium case acts as the heatsink, so the component relies on external thermal coupling rather than an insulated cover. It suits engineers and hobbyists assembling or repairing power electronics.

Replaces lower-power or non-heatsinked resistors

A 100 W rating lets this part take the place of smaller wirewound or carbon-film resistors that would overheat in the same circuit. The jump is worth it when the application demands continuous high dissipation, overload capability or the mechanical security of a chassis-mount package. It is not for designs that need surface-mount components, very low inductance or resistance values outside the single 3 Ω option offered here.

Chassis-mount with 59 mm body and dual terminals

The main body measures 59 mm (2.32 in) long and provides two rods with 2 mm holes for soldered connections. A 3.2 mm antisymmetric mounting hole accepts #2 or M2.3 hardware to secure the resistor to a metal panel or heatsink. This layout frees PCB space for other parts while the aluminium housing draws heat away from the winding. No thermal interface material or forced-air provision is included.