Spring, English name: spring, is one of the core components in the pogopin pogo pin. It is made of high carbon steel materials. Common materials are SWP (piano steel wire), stainless steel and beryllium copper.
The common pogopin spring is SWP (piano wire), which has good tensile properties. It produces a good mechanical life and a large spring value; however, this material is a highly magnetic material, prone to rewinding at high temperatures, and is prone to corrosion. Therefore it must be processed before use;
In addition, stainless steel material is also used for pogopin spring material, it is a low magnetic material and can resist high temperature, so it is also selected as a common material for springs in pogopin.
The third material is beryllium copper, which has excellent fatigue resistance and low impedance, but its tensile properties are relatively poor. Usually, it is not a good choice when the pogopin has a small wire diameter and requires a larger elastic value than the pogopin.
The spring plays an important role in the pogopin pogo pin, because the performance requirements and use environment of the pogopin pogo pin need to be considered when selecting materials.