power resistor
Power resistors are resistors that can dissipate higher power. They can be designed as wire-wound resistors or thick-film resistors.
There are no specific power values above which a resistor can be classified as a power resistor. The classification is purely subjective and depends on the application. Inelectronics, resistors with 0.5 W are already classified as power resistors, whereas values of 50 W are specified in power engineering.
To dissipate the absorbed power, power resistors are equipped with heat sinks or heat dissipation plates, or are housed in aluminum enclosures and mounted directly on a heat-conducting surface for better heat dissipation.
Power resistors are used as heating resistors, discharge resistors or as protective resistors for current and voltage limitations.