The Amphenol FCI 87916-409HLF is a BERGSTIK® II unshrouded header, 9 positions in a single row at the industry-standard 0.100" (2.54 mm) pitch. The 0.100" pitch matches breadboard and protoboard layouts and is the most common spacing for IDC ribbon-cable sockets — the 9-position count lines up with a 9-wire IDC cable assembly. The 5 A rating is typical for signal-level current and low-power distribution within an enclosure. The housing is UL94 V-0 rated black thermoplastic, and the contacts are phosphor bronze with 100.0 µin (2.54 µm) of tin on the mating surface. All 9 positions are loaded.
The overall contact length of 1.058" (26.87 mm) and a mating contact length of 0.830" (21.08 mm) define the mated stack height. The 0.100" pitch and single-row layout require a straightforward PCB footprint: a row of 9 plated through-holes on 0.100" centers. The unshrouded header has no additional keep-out for a shroud wall, so adjacent components can be placed close to the pin row.