Why should you use Thermally Conductive silicones in electronics?
Most electronic components produce heat when in use. This unwanted heat must be dissipated away from the components to maintain performance and avoid premature failure of the components or device. The need for efficient transfer of heat has become a key design requirement as components continue to reduce in size and increase in power, this is particularly apparent with microchip processors, LEDs and power packs.
Designs will vary but in essence all involve some form of heat sink to dissipate the heat away from the active components. It is the interface between the heat sink and component that calls for the use of thermal transfer compounds - without their use any air gaps that exist will act as an insulator and prevent heat escaping.
The choice of material will be driven by a combination of factors including:
- Thermal requirements
- Manufacturing processes
- Environmental operating conditions
- Need for additional functionality
Silicone Based Thermal Transfer Materials
Thermally conductive silicone elastomers can be formulated as both RTV and heat cured adhesives, encapsulants and non-setting compounds.
With the rapid rise in the number electric vehicles being developed and manufacturered thermally conductive silicones are becoming particularly important in the automotive industry. For further information download our Electric Vehicles brochure and guide to Thermal Transfer Silicones for Automotive Applications.
|AS1420||SILCOTHERM 1 Part flowable heat cured silicone adhesive sealant||Fast cure with heat|
|AS1421||SILCOTHERM 1 Part flowable heat cured 2.1 W/mK silicone adhesive||UL94V0 approved file Number E334038|
|AS1701||1 Part RTV silicone adhesive sealant paste non corrosive||Fast skinning|
|AS1802||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||Excellent thermal conductivity|
|AS1802BLACK||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||UL94V-0 approved file no. E334038|
|AS1803||SILCOTHERM 1 Part RTV silicone adhesive sealant paste non corrosive||Good thermal conductivity|
|QSil553||SILCOTHERM 2 Part Addition cure silicone encapsulant||Thermally conductive|
|QSil573||SILCOTHERM 2 Part Addition cure silicone encapsulant||Thermally Conductive|
|SE2003||SILCOTHERM 2 Part Addition cure silicone encapsulant||Room temperature cure|
|SE2010||SILCOTHERM 2 Part silicone gap filler||Thermally conductive|
|SE3000||SILCOTHERM 2 Part Addition cure low viscosity||Thermally conductive|
|SG500||SILCOTHERM thermally conductive silicone grease||Thermally conductive|
|AS1707||One Part Thermally conductive adhesive||Space grade - low outgassing|