aluminum extrusion profile

A heat sink (or heatsink) is an object that absorbs and dissipates heat. Heat sinks are used in a wide range of applications (such as LED design) wherever efficient heat dissipation is required. Heat sinks are made of metal or alloy, which usually includes a combination of aluminum and copper. Heatsinks may also consist of one or more flat surfaces to ensure good thermal contact with the components that need to be cooled, and an array of comb or fin like protrusions to increase the surface contact with the air, and thus the rate of heat dissipation.The performance specification for any heat sink would be thermal resistance or thermal sensitivity.Heatsink surface treatment can be Anodized Aluminum (colored) or Copper heatsinks can be plated with Silver or Gold.