heat sink
  • noun a metal device used to conduct heat away from an electronic component to prevent damage
  • noun a place that can absorb extra heat
  • A material or object which helps dissipate unwanted heat from components, circuits, devices, equipment, enclosures, or systems, enabling them to continue working within a safe temperature range. It does so by absorbing heat and conducting it away to a surface from which it is dissipated into its surroundings. Heat sinks are used, for instance, to protect power transistors. Also called sink (3).
  • Any material, such as a solid or a fluid, which serves to protect components, circuits, devices, equipment, enclosures, or systems, by removing heat. Also called sink (4).

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