Aluminium heat sinks are passive heat exchangers commonly used to cool electronic devices. Heat sinks have a large surface area which increases the rate of heat transfer to the cooling surrounding medium. The typical finned profiles have large surface areas which increases the heat sink’s ability to dissipate heat via convection. T-Global offers a range of off the shelf profiles for most projects and can manufacture custom sizes for bespoke applications. The properties of the surroundings and choice of material for the heat sink, all play a role in the performance.