Heat sink is a kind of electronic components in the electrical appliances easy to heat the device, more by aluminium alloy, brass or bronze made of plate, sheet, multi-piece, such as computers in the CPU processor to use a considerable heat sink, television sets in the power supply tube line tube, amplifier in the amplifier tubes have to use the heat sink. General heat sink in use in the electronic components and heat sink contact surface coated with a layer of thermally conductive silicone grease, so that the heat emitted by the components of more effective conduction to the heat sink, and then by the heat sink emitted into the surrounding air.

Material:Aluminium
 
Colour: black, silver
 
Specification:W35*H12*L25mm
 
Hole size:M3 tapping hole, hole height 18㎜.
 
Scope of application: TO-3P TO-220 package L7805 7812 7905 LM317 and other heat dissipation with
  

Applications: IC circuit boards, motherboards, transistors, MOS tubes TO-3P high-power tube heat sinks, electronic audio amplifiers, modules, power supply heat sinks, air-cooled aluminium heat sinks and so on. 

Features: 
 
can provide the effective volume of space occupied during the period, can be the period of simple junction allowed to play the highest temperature, science and technology to reduce the power loss of the device, can improve the environment (the temperature around the device, as well as the flow rate of air) 

Good thermal conductivity and fast heat dissipation
Aluminium or aluminium profile heat sinks are better at dissipating heat, enabling the device junction to be allowed to play to high temperatures, improving the environment (the temperature around the device, and the flow rate of air)
 
Resistance to oxidation and high temperature
Aluminium profiles are treated with both hot and cold processes in the production process, which have strong corrosion resistance, are not easily deformed, and have a long service life.
 
Edge rounding treatment
Eliminate burrs surface smooth anti-cutting safer