Professional 2pcs/set Aluminum Cooling Heatsink/ Heat Sink for 12mm Diode Module heatsink3

welcome to this very important lecture on heatsink selection after this lecture students will hopefully be able to understand how I heat sink works what is the underlying principle of a heat sink and what is the main selection criterion well the purpose of the heat sink is to maintain the temperature at a level below the specified maximum operating temperature of the electronic device it is going to cool there are many electronic devices like transistors processors amplifiers resistors that can get very hot even if they are dissipating a single watt of power if you allow these devices to dissipate heat without heat sink then Junction to ambient thermal resistance can be as high as 65 degree centigrade per watt this means that for every watt of heat loss the junction temperature of these devices can rise by 65 degree above the ambient temperature manufacturers normally mention this value