What this connector is
The Amphenol FCI 68023-231HLF is the 31-circuit member of the BERGSTIK II series — a classic 0.100 inch (2.54 mm) pitch unshrouded single-row header designed for board-to-board stacking in industrial automation and instrumentation applications. It is a right-angle through-hole part with a push-pull fastening type, meaning the mating half slides in and the friction-fit holds it — no latch tab, no screw lock. Contact material is phosphor bronze, and all 31 positions are populated. The insulation is black and rated UL94 V-0.
Plating and what the 15 µin gold means
Contact finish on the mating side is gold or Gold, GXT™ at 15.0 µin (0.38 µm). GXT is a gold-flash variant from Amphenol FCI designed to resist fretting wear in vibration applications.
Ratings that drive the BOM decision
Pitch is 0.100 inch (2.54 mm) — the standard 2.54 mm grid used across most parallel-board headers, so the footprint is familiar and routing density is moderate. Current rating is 5 A per contact at the listed conditions; the voltage rating is 110 V. The 31-position count is the primary selection variable — match it to your circuit count exactly, as BERGSTIK II is available in shorter cuts down to a few positions, and a larger-count part can be used with unused positions left open only if the housing or mating connector tolerates it. Insulation height is 0.095 inch (2.41 mm) — relevant for mated stack height calculations in tight z-height budgets.
What it mates with and how it terminates
This is a male pin header — it mates with the matching BERGSTIK II IDC receptacle or any standard 0.100 inch pitch female header with sufficient position count and right-angle orientation. The termination is through-hole solder; post length is 0.305 inch (7.75 mm) and the mating pin engagement length is 0.136 inch (3.45 mm). The push-pull fastening style provides retention but no positive lock — in high-vibration environments a latch-tab or screw-lock variant from the same series is the safer choice.