TO-3 at Motorola around 1955. The lead spacing was originally intended to allow plugging the device into a then-common tube socket. The metal package can be attached to a heat sink, making it suitable for devices dissipating several watts of heat. Thermal compound is used to improve heat transfer between the device case and the heat sink. Since the device case is one of the electrical connections, an insulator may be required to electrically isolate the component from the heatsink. Insulating washers may be made of mica or other materials with good thermal conductivity. The case is used with high-power and
Electrical connector other connectors such as Banana connectors. A connector that locks a metal spade to a terminal by screwing them together. Crimp connectors can be used for fast and friction-type connections in DC applications where connections are broken repeatedly. Alligator connectors are often used as temporary test leads. A screw terminal is a type of electrical connector where a wire is held by the tightening of a screw. Phone connectors can be used as connectors in microphone cables and for low-voltage, low-current applications. Pogo Pin Connectors or Spring Loaded Connectors is a connector type commonly used in consumer products. The Connector