It mates with standard CT crimp housings, giving you a locked-in wire harness that won't vibrate loose — the detent lock holds the pair together until you deliberately pull them apart. Pitch is 2.00mm, which keeps the board footprint tight enough for compact layouts while still leaving room for routing traces between pads. The 3-wall shroud guides the mating housing and protects the pins from accidental bending during assembly.
Termination is kinked pin, solder — the kink holds the pin in the through-hole during wave solder, so you don't get floating pins. Mates with any TE CT series crimp receptacle housing that has the same 2.00mm pitch and 4-position count.