Board fit and contact finish
The 7-535598-1: The through-hole termination uses a 0.125" post length with tin finish (150.0µin) on the solder tail, while the mating interface is gold over phosphor bronze — a combination that suits repeated mating cycles in controlled environments. Row spacing matches the 0.100" pitch, so the footprint keeps a uniform grid for routing on standard 0.100"-center boards.
