Board-fit for a 4-position wire-to-board run
The 3-794624-4: This is a 4-position, 2-row header from TE's Micro MATE-N-LOK series, pitched at 3.00mm on both the row and the position spacing. The housing is shrouded on all four walls, so the mating receptacle aligns without skewing the pins. A locking ramp on the top wall clicks into the matching receptacle latch for a vibration-resistant mate.
What the locking ramp and board locks do for the assembly
The board locks on the ends anchor the header to the PCB during reflow and take the shear load from cable tugging, so the solder joints don't take the strain.