Electronic RadiatorTypically, heat sinks designed for dissipating heat from high-power electronic components, without any external power supply, rely on natural cooling. Most are made from aluminum alloy profiles, cut to the required size based on the component's size, such as heat sinks for high-power switching tubes or transistors. Of course, in special cases, ultra-high-power electronic components may be equipped with cooling fans, such as the switching tubes in switching power supplies, which require the addition of a cooling fan.