Probably one of the most obvious and simple ways of cooling electronic components, however some thought needs to be applied to how you will interface the LED to the heatsink. Generally there will be a PCB between the LED and the heatsink, which means various thermal interface materials need to be employed to enable the efficient transfer of heat from the LED to the heatsink whilst maintaining electrical isolation.
Traditionally heatsinks employ either an aluminium or copper material hence the need for thermal interface materials to provide electrical isolation.
A further type of heatsink is also available which uses a ceramic material that is electrically neutral and does not require electrically isolated thermal interface materials. In some cases the LEDs can be mounted directly onto the heatsink meaning no PCB is required. These ceramic heatsinks are useful in applications where a much higher thermal performance is required. We are happy to offer advice on the use of these materials, please click on this link to contact our technical teams to discuss your requirements.
Anglia represent Aavid, Calinar and Fischer who each provide a wide range of aluminium heatsinks in standard extrusion sizes or stamped formats to suit most applications. All three suppliers can also offer heatsinks suitable for cooling LEDs. Calinar and Fischer are able to offer a fast turnaround custom heatsink design service.
Thermal Interface Materials
Anglia can offer thermal management solutions from both Calinar and Bergquist using a variety of interface materials.