The Molex 430452219 is a 22-position dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power interconnects in automotive, industrial, medical, and telecom equipment. It sits as the 22-circuit SMT variant in a family that spans 2 to 24 positions at the same 3.00 mm pitch, all sharing the same shrouded 4-wall housing and locking ramp. The locking ramp fastening type is the key mechanical differentiator for automotive/industrial use where the mated pair must resist unplugging under shock or vibration.
The 22-position dual-row layout accepts the standard Micro-Fit 3.0 crimp terminals (20-24 AWG) in the receptacle side.