24 Circuits at 4.20mm Pitch — Footprint and Fit
The 0039306247: The 24 positions, fully loaded across two rows, give you a dense but serviceable power interconnect. In a panel or enclosure where the harness gets tugged, those locks keep the solder joints from cracking.
Locking Ramp and Shroud — Vibration-Ready Mate
In an industrial cabinet with fans or a telecom rack with cooling blowers, that ramp keeps the pair mated — a half-turn loose is a dropout, but this isn't threaded; it's a positive lock that won't back off. No keying here, but the shroud alone reduces mis-mate risk on a production line.
Tin Plating — Cost-Effective for Moderate Duty
Tin is the workhorse for connectors that mate a few dozen times over their life — think a PSU harness that connects once at build and stays. For a field-service application cycled quarterly, you'd want gold; here, tin keeps the unit cost down.