What this header is and where it sits in the series
The Molex 430450415 is the 4-circuit member of the Micro-Fit 3.0 43045 series — a dual-row, surface-mount male pin header with a four-wall shroud and locking ramp. It accepts the matching Micro-Fit 3.0 receptacle housing on the cable side, delivering a polarised, vibration-latched board-to-wire interconnection across automotive, industrial, medical, and telecom applications.
What the ratings mean for your fit decision
Mating pair and termination
The 430450415 is a male pin header; it mates with the matching Micro-Fit 3.0 female receptacle housing — the wire-to-board or cable-side half that carries the crimp terminals. The square pin geometry seats into the socket beam on insertion, and the locking ramp engages a retention feature in the housing to resist accidental unmating under vibration or pull on the cable bundle. Termination is solder — the solder-post tail is designed for surface-mount paste-and-reflow assembly. The board lock holds position during reflow; no through-hole lead-in is present, so this is a pure SMT part. Tape-and-reel packaging supports automated placement.