The Molex 0430452224 is a 22-position, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnect in power distribution and signal harnesses. It operates at 8 A per circuit with a 600 V rating, making it a genuine power-class header for applications like automotive, industrial, medical, and telecom equipment where a robust, shrouded interface is required.
The 0.118" (3.00 mm) pitch on both the mating interface and row spacing is the standard Micro-Fit 3.0 footprint — the board layout is shared across the series, so swapping position counts doesn't require a new PCB pattern. All 22 positions are loaded, which means the BOM circuit count must match exactly; there are no optional unpopulated positions. The 4-wall shrouding with a locking ramp gives the header a polarised, keyed interface that prevents mis-mating and provides audible positive retention. The through-hole, kinked-pin solder termination gives a reliable mechanical anchor on the PCB for the cable-side pull forces.