The 79425-454HLF is a 54-position dual-row unshrouded male pin header from the Amphenol FCI BERGSTIK II series, designed for board-to-board signal interconnects on a standard 0.100" (2.54mm) pitch. It carries a 5A per-contact current rating at 110V, with tin-plated phosphor bronze contacts — the 100.0µin (2.54µm) thick tin finish on the mating surface suits moderate-cycle-count applications where cost per position matters more than gold's cycle life. The through-hole solder termination and 0.100" (2.54mm) insulation height keep the footprint compatible with legacy dual-row receptacles and prototyped boards.
The 0.100" (2.54mm) row and column pitch matches common dual-row receptacles and IDC sockets.
Contact finish and duty
The 100.0µin (2.54µm) thickness on the mating side provides enough tin to resist fretting corrosion under mild vibration, but the unshrouded design means the pins are exposed and should not be used where debris or accidental shorting is a risk. The tin-plated post (solder tail) wets well with standard SnPb or SAC solder profiles.
Mating compatibility
This unshrouded header mates with any standard 0.100" pitch dual-row receptacle that accepts 0.025" square pins — common examples are BergStik, Dubox, and other industry-standard socket strips.