Pogo Pin Water proof Type, 5Pin Pitch 2.5mm T/L 6.6mm W/H 5.4mm DIP w/o Cap A pogo pin or spring-loaded pin is a type of electrical connector mechanism. The conducting surface is gold plated which provides great corrosion resistance, enhances its mechanical strength and electrical conductivity. Pogo pin combines the advantages of fine pitch, high current, and long lifetime that can be widely used in industrial, medical, and consumer applications.