The Molex 430451027 is a 10-circuit, dual-row header from the Micro-Fit 3.0 43045 series, designed for board-to-wire power and signal interconnects. It carries a 0.118" (3.00 mm) pitch on both the mating interface and the row spacing, with a 4-wall shrouded housing and a locking ramp for secure mating. Rated 8 A per circuit at 600 V, with tin-plated brass contacts (60.0 µin on the mating surface), it operates from -40°C to 105°C and carries a UL94 V-0 flammability rating. Typical applications include automotive harnesses, industrial control cabinets, medical equipment, and telecom infrastructure.
This through-hole header mates with Micro-Fit 3.0 receptacle housings loaded with matching crimp terminals.
Against the 12-circuit 430451212, the 430451027 shares the same 3.00 mm pitch, dual-row layout, 8 A rating, and tin plating. The only decision-relevant difference is the position count: 10 circuits vs 12 circuits.