The 10-circuit member of the Micro-Fit 3.0 43045 surface-mount family
The Molex 430451006 is a dual-row 10-position header in the Micro-Fit 3.0 43045 series, configured right-angle surface-mount with a board-lock feature that anchors the part to the PCB during harness mating cycles. Pitch is 0.118" (3.00 mm) on both the mating face and between rows — standard Micro-Fit 3.0 geometry that defines the board footprint and the compatible receptacle pitch. The 4-wall shroud surrounds all four sides of the contact array and the locking ramp on the header housing mates with the latch on the matching Micro-Fit 3.0 plug housing — this is a locked-mate pair, not a friction-fit header, so the engineer specifying it for a harness route must confirm the corresponding plug housing is specified on the same BOM line.
What the ratings mean for the harness builder
8 A per circuit at the listed voltage means this header belongs in the power-interconnect tier of the Micro-Fit 3.0 series — not a signal-density header. Contact material is brass, and the 60.0 µin (1.52 µm) tin finish on both the mating face and the solder tail is standard industrial plating rated for solder reflow and field-service re-mating cycles. 600V rating supports higher-voltage industrial power distribution, and the -40°C to 105°C operating range covers refrigerated storage and instrument-bay environments. Insulation height of 0.290" (7.37 mm) governs the standoff above the board surface when the header is reflowed — relevant for z-height budgeting in multi-board stack-ups. The UL94 V-0 flammability rating on the LCP glass-filled housing satisfies the flame-class requirement in most industrial panel and automotive interior harness specs without needing an additional shroud or backshell.
Sourcing and lifecycle
Quoted to order against the BOM quantity. The 10-position count and 3.00 mm pitch are the two ratings to verify against the circuit-count and footprint on the existing BOM line before committing.