Factors influencing the cycle life of the pogo pin
1. Selection factors of the working stroke of the spring thimble.
When choosing a pogo pin, it must be determined according to the space of the product used, and it must be selected within the working stroke range; if the space is too small, the pogo pin spring will be over-compressed, affecting the service life. If the space is too large, the contacts will not be in place, the impedance will be unstable, and the phenomenon will be disconnected instantly.
2. The choice of electroplating materials.
The electroplating material can increase the conductivity, prevent oxidation, and prevent the pogo pin from wearing. Different materials have different functions, such as gold, which conducts electricity well. For high-current connectors, products with high impedance requirements generally choose gold plating.
3. What is the effect of coating thickness?
The spring thimble will generate a certain amount of friction when it is working, and it will wear out over time. The thickness of the coating has a great influence on the service life of the product. When used to a certain extent, the electroplating layer is worn, which may lead to excessive resistance and unstable impedance. The electroplating layer of the spring antenna thimble is 100,000 times thicker than that of 10,000 times, so please choose the electroplating requirements according to the requirements when selecting products. Fourth, the impact of elasticity.
The contact force of the pogo pin comes from the innerspring, and the spring force will directly affect the impedance and stability of the pogo pin. Excessive elasticity will increase the friction coefficient and affect the service life of the spring antenna thimble.