Micro-Fit 3.0 Header, 12 Circuits, 3.00 mm Pitch
The Molex 430451225 is a 12-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power distribution. The 8 A per circuit rating means each pin can carry moderate power — sized for a DC rail or multiple signal lines, not a single high-current bus.
Board locks on the housing add shear-force resistance against cable strain, which is useful when the mating receptacle is part of a harness that gets flexed. The insulation height of 0.390" (9.91 mm) and post length of 0.125" (3.18 mm) set the z-height budget for the mated pair.