Four factors affecting the service life of pogo pin
1, pogo pin work schedule selection
In the process of choosing a spring thimble, it must be determined according to the actual space of the product used. It should be selected within the range of the working stroke, because the space is too small, which will cause the spring of the pogo pin to be over-compressed, thereby shortening the service life. If the space is too large, it is very likely that the contact will not be in place, the impedance will be unstable, and the pogo pin will be interrupted instantaneously.
2. Selection of plating materials
The electroplating material in the pogo pin has the effects of improving conductivity, avoiding oxidation, and anti-wear, so the role of different materials is also different. For example, gold has good conductivity, so for high-current connectors, high impedance requirements are required Of products usually choose electroplated gold.
3, plating film thickness
When the Pogo pin is working, it will wear out after a long time of friction. Therefore, the thickness of the electroplating film will have a certain impact on the service life of the product. If the electroplating layer is worn away, it is likely to cause too much resistance. The impedance is unstable, etc. Therefore, when selecting the product type, the thickness of the electroplating film must be selected according to actual needs.
4. The influence of elasticity
The contact force of the Pogo pin comes from the internal spring, and the spring force will directly affect the impedance and stability of the pogo pin. If the elasticity is too large, it will increase the friction coefficient and affect the service life of the spring thimble.