What it is and where it sits in the series
The Molex 430452406 is the 24-circuit member of the Micro-Fit 3.0 43045 family — a dual-row 3.00 mm pitch header series designed for wire-to-board power and signal distribution in harness assemblies. This specific variant is right-angle surface-mount, fully loaded (all 24 positions populated), with a four-wall shroud and a locking ramp that provides primary mate retention. The matching half is the corresponding Micro-Fit 3.0 female receptacle housing accepting pre-crimped terminals — the locking ramp on the header requires no secondary TPA clip on the mating side, which simplifies the harness assembly step.
Ratings that drive the fit decision
Where the class is used
Micro-Fit 3.0 headers are a standard wire-to-board interconnect in automotive under-harness and dashboard branches, industrial automation control modules, medical equipment power-distribution boards, and telecom infrastructure panels. The 600 V rating expands the envelope beyond most board-level DC applications into low-voltage AC bus segments. The UL94 V-0 LCP housing material supports the flammability requirements of these regulated markets.