What is a pogo pin?

A pogo pin or spring-loaded pin is a type of electrical connector mechanism that is used in many modern electronic applications and in the electronics testing industry.The spring pin is mainly composed of three parts: the pin shaft, the spring, and the pin tube. The pogo pin for special applications may also have other structures such as insulating beads added inside. Its internal structure can be divided into various types such as oblique profile, through-hole pin shaft type, and reverse drilling type to adapt to different application scenarios and performance requirements.

The working principle of the pogo pin is based on the elastic deformation of the spring. When an external force acts on the pogo pin, the spring deforms and stores energy; when the external force disappears, the spring returns to its original shape and releases energy. This characteristic enables the pogo pin to achieve various functions, such as driving clocks, controlling the movement of mechanical equipment, and sensing external forces.In sensors, the deformation of pogo pins can be used to sense external force, pressure or displacement; in switches, their deformation is used to control the on and off of circuits. In addition, pogo pins are also widely used in charging equipment, medical equipment, electronic products and other fields.

The internal structure of the spring pin varies according to the application scenario. Common structural types include oblique profile, through-hole pin shaft type, reverse drilling type, etc. In special applications, structures such as insulating beads are added inside the pogo pin to improve its performance and applicability. The surface of the pogo pin is usually gold-plated to improve its corrosion resistance, mechanical properties and electrical properties.

With the continuous development of science and technology, the application field of pogo pins will continue to expand. In the future, we can expect the emergence of more innovative pogo pin products and technologies to meet the needs of different industries for high-precision and high-reliability connectors. At the same time, with the enhancement of environmental awareness, environmentally friendly and recyclable spring pin materials will also become a future development trend.