Heat sinks are mechanical devices that are used in electronic products as heat exchangers. Heat energy caused by the dissipation of power in components is directed away from them by heat sinks, reducing the associated temperature rise. Aluminium is the most common material for heat sinks. In particular, extruded Aluminium heat sinks fit the needs of most projects. The metal is lightweight and has relatively good thermal conductivity.

A Custom heatsink is a good choice for the for the most challenging applications. In the simplest form, Radian Thermal Products can use one of our wide range of standard heatsinks, and then modify to meet the thermal application requirements.

Copper has the highest thermal conductivity of all of the commercial metals (nearly twice of Aluminium) which can significantly improve spreading heat from small components for the best possible performance within the allowable space constraints. These are manufactured by accurately peeling fins from a bar of solid copper to form a near-finished part. The fins are an integral part of the base plate with no solder or other interface joint. This allows for optimal thermal performance within the parameters of the application.

A Copper Heatsink is sometimes used as a heatsink as it is a good conductor of heat. This can be observed if you heat one end of a piece of copper, the other end will quickly reach the same temperature. Copper is used in many heating applications because it doesn't corrode and has a high melting point.