An electrical connector is a device used to join circuits, also known as an electric connector. This component serves as the connection point between different elements within the same circuit system or provides a link for power and data between different circuit systems and devices. It is widely used in various electrical circuits, playing a role in connecting or disconnecting circuits. There are many types of connectors, including automotive, circular, D-sub, fiber optic, Ethernet, power, RF, solar, USB connectors, as well as terminal, terminal block connectors, and wire connectors.