What this connector is
The 87916-104HLF: The housing is UL94 V-0 black glass-filled nylon with a 0.100" (2.54 mm) insulation height and square male pin contacts. All four positions are loaded. Mating contact length is 0.830" (21.08 mm) with a post length of 0.128" (3.25 mm) — the overall contact length of 1.058" (26.87 mm) gives substantial board-projection for through-hole retention in moderate-profile assemblies.
Where it fits in the BERGSTIK II series
BERGSTIK II covers a wide position-count range in the same 0.100" pitch, single-row, unshrouded format. The 87916-104HLF is the 4-position member — 0.100" pitch throughout the family, but the circuit count and overall header length change with position count. The gold or Gold GXT plating with 30.0 µin (0.76 µm) thickness is consistent with mid-cycle-life builds in this series, sitting above tin-plated grades.
What the key ratings mean
5 A per contact at 110 V is the headline — this header is positioned for signal and low-power board-to-board duties. The 30.0 µin (0.76 µm) gold or Gold GXT contact finish on the mating side is the durability differentiator: it resists fretting and supports hundreds of mating cycles without the surface degradation tin-plated contacts would show at equivalent cycle counts. The push-pull fastening type is manual mate/de-mate — no screw-lock or latch. In high-vibration environments this is a selection consideration: confirm the board spacing and friction fit are sufficient, or specify a mating receptacle with a positive locking feature to prevent de-mating under shock. The 1.058" (26.87 mm) overall contact length with 0.128" (3.25 mm) post projects well beyond the board surface — beneficial for through-hole solder fillet integrity but something to check against your board keep-out envelope and any enclosure constraints.