QuickCool 5061-00305 Insulating washer (L x W) 23 mm x 20 mm Suitable for TO 220F 1 pc(s)

Ceramics is due to its low-inductance property as an insulator for high-frequency, electromagnetic radiation. This allows others to prevent a heat sink in RF transistors as unintentional "antenna" works, or causes NF-power semiconductors an oscillation due to crosstalk. Very high electrical insulation properties.

Price: £ 0.57 from Conrad Electronic