The FCI 87916-403HLF is a 3-position, single-row, unshrouded header in the BERGSTIK® II series. It's a basic through-hole board-to-board interconnect — 0.100" (2.54 mm) pitch, male square pins with tin plating on both the mating surface and the solder tails. The 0.830" (21.08 mm) mating length gives enough reach to clear a standard 0.062" PCB and mate with a shrouded receptacle, while the 0.128" (3.25 mm) post length suits a typical 1.6 mm board thickness. Rated 5 A per contact at 110 V, with a UL94 V-0 black insulator.
The 0.100" pitch is the standard breadboard and perfboard spacing — this header drops into any 0.100" grid layout without footprint changes.