The Molex 430452227 is a 22-position, dual-row vertical header from the Micro-Fit 3.0 43045 series. At 3.00 mm pitch with 8 A per circuit and a 600 V rating, this is a workhorse power header for automotive, industrial, medical, and telecom harnesses.
The 600 V rating gives generous creepage headroom for 48 V or 400 V bus applications. The locking ramp fastening gives positive retention against vibration — the latch clicks home when mated with the receptacle, and the 4-wall shroud keeps the pins aligned during engagement.
Through-hole mounting with 0.125" (3.18 mm) solder posts — fits standard 1.6 mm PCBs with room for the solder fillet. The LCP glass-filled housing (UL94 V-0) handles wave-solder temperatures without distortion.
Mating and Wiring
This header mates with any Micro-Fit 3.0 dual-row receptacle housing (e.g., the 43025 series). The square pins accept the standard Micro-Fit 3.0 female crimp terminal, which handles 20-24 AWG wire. The 22-position, all-loaded layout means every cavity is populated; no dummy pins needed.