What this connector is
The Molex 430452024 is the 20-position member of the Micro-Fit 3.0 43045 series — a dual-row board-to-cable header designed for power and signal distribution in harnesses where the board-side termination is through-hole solder. The shrouding with locking ramp mechanically keys the mating receptacle and resists vibration-driven unmating, while the board-lock feature anchors the header to the PCB before solder reflow and helps preventcoplanarity-driven opens during thermal cycling. Rated 8 A per circuit at 600 V with tin-plated brass contacts (60 µin mating finish), the connector covers automotive, industrial, medical, and telecom applications where a reliable, mid-power interboard link is required.
What the key ratings mean for your fit
Mating half and termination
The 430452024 mates with the corresponding Micro-Fit 3.0 receptacle housing — the locking ramp on the header engages the primary latch on the receptacle to give an audible and tactile confirmation of full engagement. Termination is kinked-pin through-hole solder; the kinked pin holds position in the PCB hole during insertion and wave or reflow, reducing tombstoning on fine-pitch rows. The 0.125 inch (3.18 mm) tail length is sized for standard PCB thickness; verify your board stack-up against the 0.390 inch (9.91 mm) insulation height to confirm adequate clearance in dense assemblies.