The 5-534206-8: The 30.0 µinch (0.76 µm) gold on the mating face supports repeated disconnect cycles; in a bench-test jig cycled weekly, that plating grade keeps contact resistance stable for years. Through-hole termination with a 0.115" (2.92 mm) post length — the tail protrudes enough for a reliable solder fillet on a standard 0.062" PCB.
Current and temperature envelope
Rated 2 A per contact — the limiting factor is the contact cross-section and the UL94 V-0 polyester housing's thermal ceiling. Phosphor bronze contact material with tin-plated posts (150.0 µin / 3.81 µm) — the tin on the solder tail wets well with standard lead-free SAC alloys, while the gold on the mating face avoids tin whisker risk in the signal path.