Board-to-board unshrouded header, 22 circuits
The 79257-422HLF is the 22-circuit member of the Amphenol ICC (FCI) BergStik II unshrouded header line, dual-row, 0.100" (2.54 mm) pitch. Rated 3 A per contact with tin-plated mating surfaces (100.0 µin / 2.54 µm thickness), through-hole right-angle mounting, and a UL 94 V-0 black insulation body rated for -65°C to 130°C.
Pitch and footprint across the series
The 0.100" (2.54 mm) pitch and dual-row layout are shared across the BergStik II series — the 22-position 79257-422HLF sits between the 20-position and 24-position siblings at the same pitch, so the board footprint and routing density are consistent; only the circuit count changes.