What this connector is
The Molex 430450424 is the 4-position member of the Micro-Fit 3.0 43045 series — a dual-row board-to-cable/wire male header rated 8 A per circuit at 600 V, with tin plating on the mating interface and a kinked-pin through-hole termination. The shrouding is 4-wall, which combined with the locking ramp gives the harness builder a positively keyed, vibration-resistant mate against the matching Micro-Fit 3.0 receptacle housing. The pitch is 0.118" (3.00 mm) and the dual-row spacing (row-to-row 0.118") puts the pin field at the standard Micro-Fit 3.0 grid — confirming compatibility with the full series housing lineup. The 4-position count is the smallest circuit-count member of the 43045 family, suited for compact power or signal分支 in harnesses that don't need the larger position counts the series offers.
What the ratings mean for your design
Lifecycle and compliance
The 430450424 carries an Active product status and is ROHS3 Compliant — no L* successor or cross-reference is listed. For a part in this position count, sourcing is against the standard series supply posture for the 43045 family. Confirm BOM position count and mating-half compatibility before committing.
Mating and termination
The shrouding and locking ramp are the primary polarization and retention features — they mate with the corresponding housing key and latch. The 4-wall shroud means all four sides are enclosed, which prevents mis-mating on a header that sits adjacent to other Micro-Fit 3.0 positions in a dense harness layout.