The Molex 430451421 is the 14-circuit member of the Micro-Fit 3.0 43045 series — a dual-row, right-angle through-hole header with a locking ramp and board-lock feature. Rated 8 A per circuit at 600 V with tin-plated contacts (60 µin thickness on the mating face), it sits in the mid-range of the 43045 series position count. The shroud is full four-wall, which gives the mated pair solid keying and vibration resistance — the locking ramp on the header positively retains the receptacle once seated. Operating from -40 to 105 °C with UL94 V-0 housing material, the connector is qualified for automotive, industrial, medical, and telecommunications applications.
Pitch is 0.118 in (3.00 mm), row spacing is 0.118 in (3.00 mm), and the right-angle orientation places the header flush against the board edge for edge-card routing. The through-hole solder tails are 0.125 in long; the board-lock feature adds lateral retention in the PCB hole before reflow, which matters in wave-solder or touch-up rework scenarios. Mating face insulation height is 0.290 in, so the header sits above the board surface by that dimension — relevant when the mated receptacle must clear neighbouring components or shields.
Mates with the matching Micro-Fit 3.0 43045 receptacle housing carrying the corresponding 14-position configuration. The four-wall shroud and locking ramp are series-specific — they lock into the housing's internal latch geometry. Confirm the housing polarity keying matches the application before specifying. Termination is right-angle through-hole solder; the board footprint must accommodate the 0.125 in tail length and the board-lock entries in addition to the signal pads.