Product Introduction
The Molex 430451806 is an 18-circuit, dual-row header from the Micro-Fit 3.0 43045 series. It is a board-to-wire interconnect — a shrouded, right-angle SMT header with tin-plated square pins on a 3.00 mm pitch. The 4-wall shroud and locking ramp give it positive mating retention, and the integrated board locks hold it in place during reflow and resist shear from the cable assembly. Rated 8 A per circuit at 600 V, it is specified for automotive, industrial, medical, and telecom applications where a vibration-resistant, mid-current power connection is needed.
What the Key Ratings Mean for Fit
The 3.00 mm pitch is the standard Micro-Fit 3.0 spacing — it sets the PCB footprint and guarantees mating compatibility with the matching receptacle housing. The 8 A per circuit rating is the headline power spec; at this pitch and with tin-plated contacts, it supports moderate-current power distribution in harness assemblies, not just signal duty. The right-angle SMT orientation places the connector parallel to the board, which suits board-edge or space-constrained enclosures. The locking ramp provides a tactile lock when mated, and the board locks anchor the header to the PCB, so the assembly resists vibration and cable strain without relying solely on solder joints.
Sourcing and Lifecycle
The 430451806 carries an Active lifecycle status and is ROHS3 compliant. No official successor or cross-reference is on record — the part is the current production member for its position count in the Micro-Fit 3.0 family.