All 54 positions are loaded with square male pins in phosphor bronze, with 15.0µin (0.38µm) gold on the mating surface, which gives enough plating for repeated mating cycles without the contact wearing through to the base metal.
Rated 5A per contact at 110V — the current is typical for signal-level duty through a 0.100" pitch header; the limiting factor is the temperature rise across the 54-position body, not the contact itself. On the board, the 0.107" (2.71mm) solder tail length dictates the through-hole depth; the 0.318" (8.08mm) mating pin length gives enough reach for standard box headers or IDC receptacles.
This is a through-hole solder-terminated header — no press-fit tooling, no special stencil. The UL94 V-0 black insulator is standard for equipment inside an enclosure; the 0.100" (2.54mm) insulation height keeps the pin base clear of the board surface for cleaning after wave solder. The dual-row layout with 0.100" (2.54mm) row spacing gives a compact 54-position footprint that routes well on a 2-layer board.