What it is
The Molex 430452428 is the 24-circuit member of the Micro-Fit 3.0 43045 family — a dual-row, 3.00mm pitch male header designed for board-to-cable and board-to-wire harness interconnects. The 4-wall shroud and locking ramp give it better retention than a plain card-edge slot, which matters when the cable side gets pulled or vibrated in the field. Dual plating: 15.0 µin (0.38 µm) gold on the mating face, 100.0 µin (2.54 µm) tin on the solder tail. The gold thickness on the mating side governs cycle life; the heavy tin on the post governs solder wetting and shelf-life of the unsoldered header sitting on the board prior to reflow.
Ratings that drive the fit
8 A per circuit is the headline rating. The 600V rating is well above typical signal or low-voltage power thresholds, so voltage is not the constraint here.
Where it is used
The Micro-Fit 3.0 family serves as a board-to-cable interconnect for automotive, industrial automation, medical, and telecom harness assemblies. The dual-row layout suits ECU node connectors and PLC rack interfaces.