What this connector is
The Amphenol FCI BERGSTIK® 75844-150-16LF is a dual-row, 0.100-inch (2.54 mm) pitch breakaway header rated 5 A per circuit at 110 V. It mounts through-hole with square male pins, and all 16 positions are loaded — no cut-down, no partial tray. The gold GXT™ contact finish (30.0 µin / 0.76 µm on the mating surface) puts this at the higher-plating tier of the BERGSTIK family, which matters for reconnection cycle life even in a board-to-board or cable-connect application. The push-pull fastening type and unshrouded header design mean it mates with any standard 0.100-inch pitch IDC socket or ribbon-cable receptacle in the same series — confirm the keying and polarization match your housing, because unshrouded headers offer no polarity protection on their own. At 0.230-inch (5.84 mm) post-mate engagement length and 0.123-inch (3.12 mm) tail length, the contact wipe is governed by the mating half's receptacle depth — a shallow socket cuts into the effective wipe and degrades contact stability under vibration.
What the key ratings mean
5 A per circuit is the individual contact rating. Dense simultaneous loading across multiple rows pushes connector-body temperature above the single-contact de-rating point — factor this into your thermal budget for power-distribution rows. 110 V is the stated voltage rating. For most industrial and instrumentation applications this is sufficient at signal and low-power levels, but verify the creepage and clearance distance at your system-level voltage — particularly if the harness passes near adjacent high-voltage tracks on the board or within a sealed enclosure. Gold GXT™ at 30.0 µin (0.76 µm) on the mating face — this is a meaningful upgrade over standard tin or thin gold flashes found on lower-tier siblings. The thicker gold resists fretting corrosion at lower contact normal forces and supports higher reconnection cycle counts before resistance degradation climbs past the signal-integrity threshold. Phosphor bronze base material adds spring resilience over brass in high-cycle scenarios. -65°C to 130°C operating temperature with UL94 V-0 flammability rating covers the thermal envelope for industrial enclosures, outdoor instrumentation, and automotive under-hood proximity zones — confirm your board-level assembly reflow profile does not exceed 130°C sustained on the housing during processing.
Where it sits in the BERGSTIK® family
Base product number 75844 places this at the 16-position member of a dual-row family at 0.100-inch pitch. Siblings in the same series offer different position counts, plating grades, and packaging — if your BOM needs a different circuit count, the matching P*N codes in the 75844 family are the direct swap candidates.