The Molex 430451606 is a 16-circuit, dual-row, right-angle surface-mount header from the Micro-Fit 3.0 43045 series. It is a board-to-wire interconnect designed for applications requiring a secure, shrouded connection in automotive, general-purpose, industrial, medical, and telecommunications equipment. The key features driving a fit decision are the 3.00 mm pitch, the 8 A per-circuit current rating at 600 V, and the 4-wall shrouding with a locking ramp for vibration-resistant mating.
The 4-wall shroud and locking ramp provide positive mating alignment and retention, which is critical in harness assemblies subject to vibration. This is a right-angle SMT header, so it terminates parallel to the PCB surface at the board edge. The footprint must account for the 0.290" (7.37 mm) insulation height above the board, and the dual-row layout with 0.118" (3.00 mm) row spacing matches the standard Micro-Fit 3.0 receptacle footprint. The 16 positions are all loaded, meaning every pin is present — no optional positions to manage.
It is a current-production part, so there is no last-time-buy or end-of-life pressure.
The mating half for this header is a standard Micro-Fit 3.0 receptacle housing, such as the 43025 series, loaded with the matching crimp terminals. No direct pin-compatible equivalent from other manufacturers is on record; this is a proprietary Molex interface.