Board-side fit and retention
The 430451415: The board lock feature stakes the header to the PCB during reflow and adds shear strength under vibration — important for any harness or panel that sees mechanical stress in service. The locking ramp on the shroud mates with the primary latch on the corresponding Micro-Fit plug housing, giving a positive click-lock before the TPA retainer engages on the wire side. The 4-wall shroud fully encloses the contact rows, preventing accidental shorting from probe tips or adjacent components during in-circuit test. Insulation height is 0.390 inches (9.91 mm); confirm this against the board stack-up and any cover or enclosure that passes over the header. The SMT solder-tail footprint is governed by the 3.00 mm pitch and the dual-row spacing — standard Molex Micro-Fit 3.0 landing pattern, so the footprint matches any other 43045-series header regardless of circuit count.
Where it goes and what it drives
Listed applications span automotive, industrial, medical, and telecom — the -40 to 105 °C operating window and UL94 V-0 flammability rating back that up. At 8 A per circuit this header is suited for power distribution within equipment: bus rails, actuator drives, LED lighting power taps, or auxiliary power feeds in a sealed enclosure. It is not a high-current power connector at the system level — the rating governs the board-side termination of a wire-to-board power run, with the harness-side connector carrying the same current on its own terminal spec.
Lifecycle and compliance
Status is Active with ROHS3 Compliant designation — no NRND flag, no LTB notice. Sourced to order against BOM quantity; confirm lead times for production runs or repeat orders.