Pin diameter acceptance and contact construction
The 5645980-1: This socket accepts pin diameters from 0.042" to 0.049" (1.07mm to 1.24mm) — the mating pin must fall within this range for a reliable interference fit. The contact is made from beryllium copper, chosen for its high fatigue life and consistent spring force over repeated insertions.
Temperature range and board fit
Rated for -65°C to 126°C, this socket suits environments with wide thermal swings — think avionics, industrial controls, or outdoor telecom enclosures. Mounting hole diameter is 0.105" (2.67mm), and the socket fits boards from 0.062" to 0.125" (1.57mm to 3.18mm) thick — confirm your PCB thickness and hole size before committing the BOM line.