Heat sink
A heat sink is an object that cools another part that is too hot. It works with a CPU fan to do this. The heat sink is in contact with the part that should be cooled. It takes heat away and dissipates it, for example into the air around it.
Heat sinks are found in most computers. The chips inside a computer can get very hot. Therefore, they need to be cooled, so that they don't break. This is usually done with a heat sink. Heat sinks are also found in most high fidelity audio amplifiers.
Heat Sink Media
A heat sink (aluminum) with its heat pipes (copper) and fan (black)
Sketch of a heat sink in a duct used to calculate the governing equations from conservation of energy and Newton's law of cooling
Power transistor heat sinks. Left for TO-3 package, right for TO-220 package, middle for two TO-220.
Heat-sink types: pin, straight, and flared fin
Free-convection flow around a pin-fin heat sink
A server-grade flash memory card with a black heat sink
Cooling system of an Asus GTX 650 graphics card; three heat pipes are visible
Roll of thermally conductive tape
