Thermal - Heat Sinks are in stock at Tenco Electronics. A heat sink (also commonly spelled heatsink[1]) 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's temperature at optimal levels.Tenco offers inventory, pricing, & datasheets for Thermal - Heat Sinks. To know more, please view our large section of Thermal - Heat Sinks below.