ITEM NAME:100x69x37mm High Power LED Amplifier Transistor Semiconductor Device Heatsi T1E9 100x69x37mm High Power LED Amplifier Transistor Semiconductor Device Heatsi T1E9 good thermal conductivity Reduce the risk of hardware failure due to overheating Maximize surface area Designed in contact with the cooling air. The 23pcs fins increase the area of the board and thus provide for greater heat transfer A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing units or processors. Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature. Quantity: 1 Weight: 223g (approx.) Used for: Various mini DC converter circuit board computer, Power Transistor, FET, IC, Power Amplifier, Voltage Regulator, MOSFET, SCR etc. colour: Silver Material: aluminum size: 100*69*37mm Package Contents: 1*100x69x37mmheat sink Note: 1. Please check the specification table and make sure that the size of the heatsink fits that of your component. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.