Micro-Fit 3.0 Header, 18 Circuits — Board-to-Wire Power Interconnect
The Molex 0430451814 is the 18-circuit, dual-row member of the Micro-Fit 3.0 43045 series — a shrouded, locking-ramp header designed for wire-to-board power distribution. Typical applications include automotive, industrial, medical, and telecommunications equipment where a reliable, field-serviceable power interconnect is required.
The 0430451814 carries 18 circuits, against the 16 circuits of the 0430451610 at the same 3.00 mm pitch and same 8 A per circuit rating. The two-position difference is the only decision point — match the circuit count to your BOM line. If your harness needs 16 positions, the 0430451610 fits; if you need 18, this is the one. Pitch, current, voltage, and plating are identical.