What it is — the 16-circuit member of the Micro-Fit 3.0 family
The Molex 430451627 is a 16-position dual-row male header in the Micro-Fit 3.0 43045 series — board-to-cable orientation, through-hole solder, with a full 4-wall shroud and a locking ramp that resists vibration-assisted disengagement in industrial and automotive harness environments.
Ratings that drive the fit decision
The 4-wall shroud and board guide provide physical keyed alignment during mating and reduce the chance of a rotated or offset mate in field-service or production assembly — useful when connectors are located under a cover with limited visibility.
Where this class is used — automotive, industrial, medical, comms
Micro-Fit 3.0 headers are deployed as board-to-wire and board-to-cable interconnects in automotive control modules, industrial automation nodes, medical equipment panels, and telecom infrastructure — applications that demand the shrouding and locking ramp for vibration immunity and the UL94 V-0 LCP housing for flame-retardant compliance inside enclosed equipment.
Lifecycle and compliance
Listed Active with ROHS3 Compliant status. No official L* successor or cross-reference documented for this series member. For any BOM line carrying this part, confirm position count against the harness drawing — the series pitch and shroud type are consistent across the range, so a same-series swap of circuit count is mechanically straightforward if sourcing pressures arise.