What this connector is
The Amphenol FCI (Amphenol ICC) 87052-168HLF is the 68-position member of the BERGSTIK II dual-row header series, a 0.100 inch (2.54 mm) pitch board-to-board header with unshrouded male pins intended for through-hole soldering into a PCB. It carries the full 68 circuits loaded across two rows at 0.100 inch row spacing, with 0.770 inch (19.56 mm) pin engagement length for mating with the matching receptacle and 5 A per contact at 110 V — a capable signal or moderate-power interconnect for dense board-stacking or daisy-chain applications.
Plating grade and what it means for the application
Contact finish is gold or Gold GXT at 30.0 µin (0.76 µm) thickness on the mating interface. At that thickness the contact is suited for multiple mating cycles rather than a single assembly mate — the gold overlay resists fretting and surface oxidation across reconnects. The contact material is phosphor bronze, which gives a compliant beam with good spring properties for repeated mating. The push-pull fastening type relies on the pin/receptacle interference fit rather than a separate locking feature, so the plating grade matters doubly for long-term retention under vibration or thermal cycling.
Board footprint and stack-height context
Pitch is 0.100 inch (2.54 mm) on both the mating axis and the row spacing, giving a standard 0.100 × 0.100 inch grid. The insulation height is 0.100 inch (2.54 mm) — the standoff from PCB surface to the top of the housing shoulder. Overall pin length is 0.990 inch (25.15 mm) with a post length of 0.120 inch (3.05 mm) below the housing. The square pin cross-section suits wave or reflow solder termination and calls for a round or routed pad — square pins in a round hole leave voids if not properly fluxed. With all 68 positions loaded and no shrouding, routing access is open on both sides of the header body, which helps dense two-row routing but exposes the pins to lateral handling damage before mating.
Flammability and environmental context
The housing is black nylon rated UL94 V-0, which handles the typical board-level flammability requirement for industrial and commercial equipment enclosures. The insulation color is black with no sealed or gasketed feature — the connector is not designed for wash or moisture-barrier applications. Supplied in bulk bag rather than tape-and-reel, which is consistent with through-hole placement on a standard SMT or mixed-technology assembly line.