Board footprint and position count
The 5-103817-2: 12 positions in a 3-row layout with 0.100" pitch and row spacing.
Current rating and thermal limits
At 3 A the temperature rise stays below the material limit.
Unshrouded header — mating and layout considerations
Unshrouded design means no polarization key — the mating receptacle must be keyed or the harness builder aligns visually. The 0.120" (3.05mm) insulation height leaves clearance for board-edge routing; the 0.230" (5.84mm) mating pin length engages standard AMPMODU Mod II receptacles with a positive stop.
Cross-shop comparison: 5-103817-2 vs 1318699-3
The 1318699-3 is a 12-position shrouded header with latch lock, 0.165" pitch, rated 5 A — it is not a pin-compatible substitute. The 5-103817-2 uses the standard 0.100" AMPMODU grid; the 1318699-3 uses a wider 0.165" pitch and a different mating interface. If the design requires a shrouded, latch-locked connector at higher current, the 1318699-3 is the alternative — but it demands a different board footprint.