2-position 2.54mm pitch — the BOM-fit anchor
The 280370-1 is a 2-position, single-row shrouded header from the AMPMODU Mod II series, on 0.100" (2.54mm) pitch. It carries a 3A current rating per contact with tin-on-tin plating — the tin mating finish is rated for moderate cycle counts, not the high-durability duty of gold.
Detent lock and UL94 V-0 housing
The 0.496" (12.60mm) insulation height provides clearance above the board for wire routing under the mated receptacle. It prevents accidental disconnection from cable snag or light vibration, but it is not a secondary lock — the terminal retention relies on the receptacle housing's own latch.