Right-angle header for board-edge wiring
The 643230-1: This is a 4-position, single-row header from the Universal MATE-N-LOK series, designed for board-to-cable/wire connections. The locking ramp on the header body mates with the matching receptacle's latch for a positive hold. You should hear it click when the pair seats — if it backs out under vibration, the ramp wasn't engaged.
Mating half and termination details
This header accepts the Universal MATE-N-LOK receptacle housing with female socket contacts. The locking ramp on the header mates with the receptacle latch. Termination is solder — the 0.160-inch post length gives enough tail for through-hole wave or hand soldering on a standard 1.6 mm board.