Board-to-Wire Power Header for Harness Assemblies
The Molex 430452212 is a 22-position, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power interconnects. It carries an 8 A per circuit current rating at a 3.00 mm pitch, with a 600 V voltage rating — the 8 A figure means each contact is sized for power distribution, not just signal-level current, so this header suits DC rail feeds and multi-circuit power delivery in harness assemblies.
The tin-plated mating contacts with 100.0 µ" thickness are a heavy-duty power finish: they handle the 8 A current with low contact resistance but are rated for fewer mating cycles than gold-plated alternatives — typical for permanent or semi-permanent harness connections where the header is soldered to the board and the receptacle is crimped to the wire harness. The 22 positions in a dual-row layout with 0.118" (3.00 mm) row spacing define the PCB footprint — a 2 x 11 grid. The through-hole posts are 0.125" (3.18 mm) long, suited for standard 1.6 mm PCBs.