What it is and where it fits
The Molex 430450813 is the 8-circuit member of the Micro-Fit 3.0 43045 series — a dual-row 3.00 mm pitch header built for board-to-wire harness interconnects in automotive, industrial, medical, and telecom applications. The shrouding is 4-wall, meaning all four sides of the pin array are enclosed, which prevents mis-mate when multiple connectors share a panel face. The locking ramp mechanically secures the mating receptacle so it does not back out under vibration.
Current rating and dual-plating logic
Rated 8 A per circuit at the mated interface. The plating is split: 15.0 µin (0.38 µm) gold on the mating face and 100.0 µin (2.54 µm) tin on the solder post. The gold delivers the low contact resistance and cycle life at the plug interface; the thick tin on the post side ensures reliable solder joint formation and resistance to oxide before and during reflow. For a harness assembly this means the connector survives repeated matings at the panel while the through-hole joint is set-and-forget.
Footprint and board fit
2-row at 0.118 inch (3.00 mm) row spacing matching the pitch, through-hole kinked-pin termination, and 0.125 inch (3.18 mm) tail length. The board guide feature on the housing header assists alignment during placement. The insulation height is 0.390 inch (9.91 mm) from the board surface — check your panel z-height and any component keep-out below the connector. The LCP housing is glass-filled and rated UL94 V-0, which covers most reflow profiles and end-product flammability requirements.
Voltage and temperature envelope
600 V rating across the 3.00 mm pitch — well above most harness-level bus voltages, so the rating headroom is not the constraint here. Operating range is -40°C to 105°C, which covers automotive engine-bay and industrial enclosure environments. Derate current above 105°C per the product drawing if the application pushes into high-ambient conditions.
Sourcing and lifecycle
Listed Active with ROHS3 Compliant status — this is a current catalog line, not a last-time-buy or phase-out. No official successor code appears on this listing. Quoted to order against the BOM quantity; confirm lead times against your build schedule. The tray packaging is standard for through-hole headers of this position count.