The Amphenol BERGSTIK II 87052-164HLF is a 64-position, dual-row unshrouded male header on a standard 0.100" (2.54 mm) pitch — the workhorse footprint for board-to-board and wire-to-board interconnection in through-hole soldered assemblies. All 64 positions are loaded, giving a full-populated pin field for dense signal routing.
Ratings and construction
The 5 A rating is per contact at the stated voltage; derate above the ambient temperature per the manufacturer's curve.
The overall contact length of 0.990" (25.15 mm) and mating length of 0.770" (19.56 mm) give the pin enough reach for a shrouded receptacle or a board-stacking application where the header passes through a second board.
No official cross-reference or direct replacement from another manufacturer is on record; the BERGSTIK II series is Amphenol's own footprint, and a pin-compatible alternative would need to match the 0.100" pitch, 64 positions, dual rows, and 0.120" post length.