What this connector is
The Amphenol FCI 87185-426HLF is a 26-position single-row unshrouded header in the BERGSTIK II series. It is a board-to-board style interconnect with through-hole termination and square male pins — the classic 0.100 inch (2.54 mm) pitch footprint found in countless industrial automation and instrumentation designs. All 26 positions are loaded, which is the full circuit complement for this member of the series.
Ratings that drive the fit decision
Rated 5 A per contact at 110 V — that is the full rating, not a derated figure, so the contact itself is the ceiling for power and signal duties alike. The contact plating on the mating face is tin at 100 µin (2.54 µm) thickness, which is a heavier deposit than many tin-plated headers carry and gives better wetting durability across repeated mating cycles. Phosphor bronze base material provides the spring compliance that keeps contact normal force up over lifecycle. The push-pull fastening type means the header relies on friction-fit and pin insertion depth to hold the mating half — there is no positive locking latch on this unshrouded body. That matters for any application with vibration or where the mated pair needs to stay seated without secondary retention. The insulation height of 0.100 inch (2.54 mm) sets the stack height contribution in a board-to-board configuration.