Heat Sink

A heat sink is an electronic device that incorporates either a fan or a peltier device to keep a hot component such as a processor cool. There are two heat sink types: active and passive.

Active heat sinks utilize the power supply and are usually a fan type or some other peltier cooling device. If you are looking to purchase an active heat sink, we recommend purchasing fans with ball-bearing motors that often last much longer than sleeve bearings.

Passive heat sinks are 100% reliable, as they have no mechanical components. Passive heat sinks are made of an aluminum-finned radiator that dissipates heat through convection. For passive heat-sinks to work to their full capacity, there should be a steady airflow moving across the fins. The above picture is an example of a heat-sink that is both active and passive.

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