Apw Wyott 56818

(S)HEAT SINK W-4 MOSTLY DROP

Drop-in replacement or just "Drop-in" is a term used to describe the ability to replace one hardware (or software) component with another one without any initial preparation or configuration changes being required, and resulting in no negative operational impact. Drop in components may also refer to items designed to fit exactly into an existing opening, such as in a countertop or refrigerated cabinet.

A heat sink (also commonly spelled heatsink) is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device to a fluid medium, often air or a liquid coolant, where it is dissipated away from the device, thereby allowing regulation of the device'stemperature at optimal levels. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.