BERGSTIK II 28-Pin Unshrouded Header
The Amphenol BERGSTIK® II 87916-128HLF is a 28-circuit, single-row, unshrouded board-to-board header on the standard 0.100" (2.54mm) pitch. It carries 28 positions loaded in a single row, with male square pins terminated through-hole. The 5A per-circuit current rating at 110V suits it for signal-level interconnects and moderate power distribution on a PCB, while the 30.0µin (0.76µm) gold plating on the mating surface provides reliable contact over repeated mating cycles in industrial or commercial environments. The push-pull fastening type and unshrouded design make it a straightforward, cost-effective choice for internal board-to-board connections where keying or polarization is not required.
The 0.100" (2.54mm) pitch is the legacy breadboard-compatible spacing — it matches the vast installed base of 2.54mm receptacles and perfboard layouts. The 28 positions in a single row mean the header occupies about 2.8 inches of board edge, which is a dense but manageable footprint for signal breakout or parallel bus connections. The 30µin gold plating is a robust choice — it handles hundreds of mating cycles without oxidation, making it suitable for test fixtures, programming headers, or any interconnect that sees repeated connect/disconnect.