The Amphenol 87185-133HLF is a BERGSTIK® II unshrouded header, 33 positions in a single row at the standard 0.100" (2.54 mm) pitch. It carries male square pins with gold or Gold, GXT™ plating on the mating surface — 30.0 µin (0.76 µm) thick, which supports repeated mating cycles in corrosive or field-service environments. Rated 5 A per circuit at 110 V, with a UL94 V-0 black housing. The 1.043" (26.49 mm) mating length gives plenty of reach for stacking with standard receptacles.
The 0.100" pitch is the legacy through-hole footprint — board layout matches decades of existing designs, and the 33 positions load all circuits (no skipped pins).
This header mates with any standard 0.100" pitch single-row receptacle housing that accepts 0.025" square pins — the BERGSTIK II series includes matching female connectors. Termination is through-hole solder; the 0.095" (2.41 mm) post length suits standard PCB thicknesses.