70-Position BergStik II Unshrouded Header
The FCI Amphenol 87901-470HLF is a 70-position, dual-row unshrouded pin header from the BergStik II series, designed for board-to-board interconnects on the standard 0.100" (2.54 mm) pitch. Each male pin is square-profile phosphor bronze with a tin-plated mating surface (100.0 µ" thick) and tin-plated solder tails, rated 5 A per contact at 110 V. The through-hole mounting with 0.120" (3.05 mm) post length suits it for PCB stacking or mating with a BergStik II receptacle. The black UL94 V-0 rated housing and push-pull fastening make it a straightforward, no-frills header for moderate-density signal and power distribution inside an enclosure.
Ratings and Fit
The 0.100" pitch is the industry-standard grid — your PCB footprint is a straightforward 0.100" x 0.100" matrix of plated through-holes, two rows spaced 0.100" apart. The 70 positions are fully loaded, so the BOM line count is exact: one header per 70-circuit interconnect. The 5 A per contact rating is typical for signal-level duty on this pitch; the limiting factor for current is the temperature rise through the tin-plated contact interface, not the phosphor bronze beam itself. Tin plating on both mating and post surfaces means this header is best for applications with few mating cycles — think a semi-permanent board-to-board link inside a chassis, not a frequent disconnect point.
Sourcing and Lifecycle
The 87901-470HLF carries an Active lifecycle status from the manufacturer — no end-of-life notice, no last-time-buy window. There is no official cross-reference or successor on record, so the BOM line stands as-is.