The post finish is tin (98.4 µinch), which solders reliably into plated through-holes.
Peer Alternative: 1394090-1
When the gold mating finish or detent lock is not required, the 1394090-1 offers a tin-on-tin contact interface with a 4-wall shroud and latch-holder fastening — same 6 positions, same right-angle through-hole footprint, but on a 0.112" (2.85 mm) pitch. The tin plating reduces per-contact cost at the expense of mating cycle life (typically 50-100 cycles vs 500+ for gold).
