How-To Geek

Heat Sink

A heat sink is a passive heat exchanger designed to disperse heat from electronic devices and help maintain stable operating temperatures. Heat sinks are designed to have a large surface area (usually achieved via fins, much like a radiator) to maximize the volume of cooling material (typically air) that comes in contact with the surface of the heat sink.

Heat sinks are used with computer processors, laser diodes, LED bulbs, and other high-temperature electronics that require passive cooling to maintain stable and safe operating temperatures.

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