According to the purpose, it is divided into: wire-to-wire connector, wire-to-board connector, board-to-board connector, input and output connector, socket. According to the processing method, it is divided into: crimping type, crimping type, also known as welding type, zero plug-in type, and piercing type. According to the purpose, it is divided into: internal connection type (for internal connection type shell), external type (for external connection shell). Divided by form: round connector, rounded connector, straight cable connector, pressure axis connector, embedded connector, coaxial cable connector, wiring board connector, PCB board connector. Divided by structure: water-resistant connectors, water-resistant connectors, fire-resistant connectors, environment-resistant connectors, ordinary connectors, and airtight connectors.
According to its versatility and related technical standards, it can be divided into: RF connectors, low-frequency ring connectors, optical fiber connectors, printed circuit connectors, and rectangular connectors.