The new high-quality TO-220 silicone cooling pad is a low thermal resistance, high thermal conductivity, and high flexibility thermal conductivity material. The high flexibility of the material can reduce the pressure required between components and, at the same time, cover the microscopic uneven surface so that the components can fully contact and improve the heat conduction efficiency. It is suitable for high-power triodes, field effect tubes, voltage regulator modules ( Such as LM78XX/LM317XX, etc.), various audio power amplifier modules (TDAXX), high-power thyristor modules (OmronXX), rectifier module integration, etc. The pads and insulating particles have good electrical insulation and thermal conductivity and are suitable for mounting TO-220 packaged power devices on heat sinks.