18-Position Dual-Row at 4.20 mm Pitch
The 0039299187: This is a 18-position, dual-row vertical header from the Mini-Fit Jr 5566 series — the 4.20 mm pitch is the board footprint anchor and sets the per-contact current ceiling. The through-hole termination and board lock provide mechanical retention during soldering and against cable strain in service.
Board Lock and Locking Ramp for Vibration
In a panel or enclosure subject to vibration — think industrial cabinets or telecom racks — these keep the mated pair from fretting open.
Compliance and Material Baseline
Natural (off-white) insulation color, typical for the Mini-Fit Jr series.
