What it is
The Molex 430451207 is the 12-circuit dual-row member of the Micro-Fit 3.0 43045 series — a board-to-cable header with a 0.118" (3.00mm) pitch, right-angle SMT orientation, and four-wall shrouding. The mating interface carries gold at 15.0µin (0.38µm) over the brass contact; the solder-post side is tin at 100.0µin (2.54µm) — a split-plating approach that reserves the precious metal for the plug interface while giving the PCB termination a solder-wettable surface. Rated 8 A per circuit at 600V across a -40°C to 105°C operating window, housed in glass-filled LCP rated UL94 V-0. Board lock features on the solder tail are present on this part — they locate the header in the paste aperture and hold it against paste давления before the reflow window, which matters for right-angle parts where the body torque during placement is higher than a vertical header sees. The locking ramp on the shroud mates with the primary latch on the matching Micro-Fit 3.0 plug housing to give an audible and tactile click.
What it mates with
The 430451207 is a male pin header intended as the board-side half of a Micro-Fit 3.0 plug connection. It mates with the matching Micro-Fit 3.0 female receptacle housing accepting crimped terminals — the series is a full plug/housing/terminal system, not a standalone header. The four-wall shroud and locking ramp positively engage the housing's primary latch, so the pair is vibration-rated in harness and equipment assemblies rather than being a friction-fit header that relies on the board footprint alone.
Sourcing posture
The 430451207 is Active and ROHS3 Compliant per the listed lifecycle status. It ships on Tape & Reel (TR) and Cut Tape (CT). Quoted to order against BOM quantity — confirm the position count, the right-angle SMT orientation, and the mating half in the same series before specifying. No official L* successor or cross-reference is on record for this part number.