The Amphenol FCI (Amphenol FCI) 86837-106HLF is the 6-position member of the BERGSTIK II board-to-board header series — a dual-row 0.100-inch (2.54 mm) pitch unshrouded header with square male pins designed for Through Hole solder mounting. The header carries a 5 A per circuit current rating, making it suitable for signal and light-power board-stacking applications in industrial and commercial equipment. All 6 positions are fully loaded. Contacts are gold- or Gold GXT-plated to 30 µin (0.76 µm) on the mating face — a thickness that supports repeated mating cycles without the full durability of hard-gold contacts but well above tin-plated alternatives. The push-pull fastening type (no locking ears or screws) is appropriate for stable board-stacked configurations where the mating pair is not subject to vibration or cable-pull. The housing is black thermoplastic rated UL94 V-0.
What the ratings mean for your fit
At 0.100-inch (2.54 mm) pitch with 0.380-inch (9.65 mm) mating length and 0.100-inch (2.54 mm) insulation height, this header fits a standard 2.54 mm grid board-to-board stack. The 110 V voltage rating is the ceiling for signal-level circuits — do not route power rails above this without checking derating against the board environment. The 5 A per circuit rating applies at the contact level; phosphor bronze substrate under gold plating handles the current without thermal issues in typical open-board conditions. The unshrouded design means there is no polarizing keying rib — alignment relies on the housing geometry and the mating connector's entry funnel. When designing the board stack, confirm the mating receptacle has adequate lead-in chamfer and that the 0.600-inch (15.24 mm) overall contact length suits the board thickness and solder process window.