Sourcingmap 1000PCS to-3 Plastic Thermal Insulation Insulator Bushing Washers White

• Country of Manufacture: CHINA; Material: Plastic
• Net Weight: 106g; Package Content: 1000(+/-2%)PCS x Insulator Bushing Washer
• Inner Diameter: 3mm / 0.12"; Outside Diameter: 8mm / 0.31",3.5mm / 0.14"
• Model: TO-3; Main Color: White
• Total Height: 4.5mm / 0.18"

The insulating particles have good electrical insulation and thermal conductivity properties. Used to insulate transistor and cooling fin to avoid short cut of the circuit. Help the transistor to be insulated from the chassis and to dissipate the heat away from the transistor and other semi-conductors.