Reduce the risk of hardware failure due to overheating. | Heatsink Size: 7.09" x2.71" x 1.41" / 180mm x 69mmx 36mm. | Widely used for computer, Power Transistor, FET, IC, Power Amplifier, Voltage Regulator, MOSFET, SCR etc. | Maximize surface area Designed in contact with the cooling air. The 27pcs fins increase the area of the board and thus provide for greater heat transfer | For need other sizes or oxidation of this model, contact the seller of this product model as soon as possible.