Board-to-wire header for 3.96mm pitch harnesses
Current rating depends on wire gauge selection
The actual current limit is determined by the mating terminal and the wire size chosen for the harness. For a 2-position header, the per-contact current is typically derated from the terminal's rating based on the number of adjacent circuits and ambient temperature. The tin-plated contacts have a higher contact resistance than gold, which increases self-heating at higher currents. In a 2-position configuration, the thermal rise is lower than in a multi-position header, but the wire gauge must still be matched to the load to stay within the UL temperature rise limits.
Peer alternatives for cross-shop evaluation
The closest functional alternative is the 1-292164-1 from the CT series — also a shrouded header with friction lock, but with 11 positions on a 0.079" (2.00mm) pitch. The 640445-2 offers a wider 3.96mm pitch and a lower position count, which may simplify routing for power or high-voltage signals. The 1-1871673-2 (1871673) is a 4-position, 2-row, 0.098" (2.50mm) pitch header with board lock and detent lock. It provides a different footprint and retention mechanism, useful when board-lock anchoring is required for reflow or vibration resistance. The 1379030-3 is a 12-position, 2-row, 0.100" (2.54mm) pitch header with friction lock and mounting flange. It targets higher-density board-to-wire applications where a flange provides additional mechanical stability.