5.7mm Length double ended pin for BGA

Plunger Material(Btip and Btip for double head end): BeCu, Au plated;
Barrel Material: PhBz, Au plated;
Spring: SWP, Au plated;
Working stroke: 0.7mm;
Spring force: 35g±20% ;
Full stroke: 1.1mm;
Lifetime: 100000times;