Definition and Function of Pin Headers and Sockets

Oct 11, 2025

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Pin headers and sockets are a pair of mating connector assemblies, primarily used to achieve electrical connections between circuit boards and between circuit boards and devices. Pins refer to inserts with multiple pins, while sockets refer to receptacles with multiple holes.

 

The main functions of pin headers and sockets are as follows:
1. Achieving electrical connections: Through the cooperation of pin headers and sockets, signal, power, and ground wires on one circuit board are connected to another circuit board or device.

2. Improving connection reliability: Pin headers and sockets have good locking performance, ensuring the stability and reliability of the circuit connection.

3. Facilitating maintenance and replacement: Circuit boards connected with pin headers and sockets can be easily repaired or replaced by simply removing the corresponding pins or sockets.

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