The FCI / Amphenol 87185-127HLF is a BergStik® II unshrouded male pin header, 27 positions in a single row on 0.100" (2.54 mm) pitch. It is a through-hole solder-terminated board-to-board interconnect — the standard DIP footprint that has been a workhorse in industrial control, test equipment, and telecom backplanes for decades. The 0.100" insulation height keeps the mated stack low, and the push-pull fastening means no locking ramp to fight when unseating a harness.
Key Ratings and What They Mean
Rated 5 A per contact at 110 V — that puts this squarely in signal-level duty, not a power bus. The 30.0 µ" gold plating on the mating surface is the real story: it buys you repeated mating cycles without the contact resistance drift you get from tin. For a header that lives in a test fixture or a field-serviceable card cage, that plating grade is what keeps the link reliable past a few dozen cycles. The 0.100" (2.54 mm) pitch matches legacy DIP and BergStik receptacle footprints — no board layout surprises. Single row, 27 positions loaded all the way, so every pin is present. The square 0.025" pin accepts standard crimp or IDC receptacles with the same pitch. UL94 V-0 rated housing — the black insulator passes the vertical burn test required for equipment inside an enclosure. Phosphor bronze contacts with gold or Gold, GXT™ finish on the mating side.