The Amphenol FCI BERGSTIK II 87185-131HLF is a 31-position single-row 0.100 inch (2.54 mm) pitch male pin header designed for board-to-board interconnect. The unshrouded push-pull header is populated across all 31 positions with square phosphor bronze pins and carries a gold or Gold GXT contact finish at 30.0 µin (0.76 µm) thickness on the mating face — a thicker gold grade than the tin-only plating found on lower-cycle variants in the same series. Rated 5 A per contact at 110 V, it mounts through-hole on a 1.238 inch overall contact length and sits in a UL94 V-0 black PA housing.
Selection matrix — same series
The BERGSTIK II 87185-131HLF tops the 87185 series at 31 positions in a single row — circuit count scales to the board bus width. At 31 contacts the header approaches the practical limit for an unshrouded 0.100 inch (2.54 mm) pitch part; board layout must confirm gang-routing clearance and verify the 1.043 inch (26.49 mm) mating length clears the receptacle entry without stubbing.