The 2159310570 is a 5-position, single-row surface-mount header from Molex's Mini-Lock 215931 series. It mates with Mini-Lock crimp receptacle housings for board-to-cable/wire connections.
Pitch, positions, and locking ramp
The locking ramp secures the mating receptacle — a useful feature in applications subject to shock or vibration, such as power tools or portable electronics. Surface-mount termination suits automated pick-and-place assembly, reducing labor cost compared to through-hole alternatives.