Keystone Electronics Corp. TO-3 Transistor Insulator 4636

Part number 4636 is a mica transistor insulator for TO-3 cases, with a thickness of 0.166 inch (4.2 mm) and a center hole diameter of 0.052 inch (1.3 mm). It provides thermal conductivity of 0.71 W/(m·K) and a dielectric constant of 7 at 1000 kHz. The insulator is made from natural mica and is RoHS compliant and ISO 9001 certified.