Pogo Pin is a spring probe formed by riveting and pressing the three basic parts of a needle, a tube and a spring through a precision instrument. The connector using this probe is called a pogopin connector.

The pogopin spring needle is mainly composed of three parts. One is the shell, that is, the needle tube, the other is the spring, and the third is the needle shaft.

The needle tube is the main structure of the probe, which plays a role in shaping and supporting. Needle tubes are usually made of copper, and the outer wall is gold-plated to play the role of oxidation resistance and corrosion resistance, and better transmit electric energy and signals.

The spring mainly acts as the jacking force to make the needle shaft better contact with the connection point. According to different products, different parts and different connection requirements, the material and strength of the spring are also different. And most of the current also needs to pass through the spring, so sometimes the spring also needs to be gold-plated.

The needle shaft is the contact part of the connection point, which is connected with the needle tube and can move through the spring. Therefore, the strength and electrical performance of the needle shaft must meet the application standards. In the case of long-term use, there must also be requirements for high durability and wear resistance. For the needle tube, its interior should be smooth, so that the needle shaft can move better.