The Amphenol FCI BERGSTIK II 86832-434HLF is a 34-position dual-row board-to-board header with 0.100 inch (2.54 mm) pitch throughout, designed for through-hole soldering on a 2-row grid. Phosphor bronze contacts carry 5 A per circuit at up to 110 V, with 100 microinch tin plating on both the mating face and the solder-tail post. The housing is black nylon with UL94 V-0 flammability rating and an unshrouded face — the push-pull fastening relies on mating-pin friction rather than a locking shroud, so confirm your receptacle or socket housing has positive retention if vibration is a factor in the assembly.
Ratings that drive the BOM fit decision
The 0.100 inch insulation height of 2.54 mm defines the board-stack standoff in a mezzanine or perpendicular board-to-board arrangement — pair it with a socket or receptacle that accepts the full 0.325 inch (8.26 mm) mating contact length and provides the retention mechanism the unshrouded header itself lacks.