50-position unshrouded header at 1.27 mm pitch
The 6-103916-3: It's a through-hole solder-terminated part, male pin, square contact shape, and it's loaded in all positions — no empty slots.
Position count contrast with 6-103916-6
If your BOM calls for 50 circuits, 6-103916-3 is the correct pick; the 80-position version is a different part number and won't fit the same footprint.
The through-hole solder termination suits standard wave-solder assembly.
