Right-Angle Through-Hole Mounting and Board Fit
The 66429-063: The latch lock/eject hooks give a positive hold against vibration — the hooks click onto the mating receptacle and the eject feature helps unmate a dense harness without prying at the plastic.
The mating contacts carry 30.0µin of gold over nickel on phosphor bronze alloy. Gold also resists corrosion in humid or mildly industrial environments better than tin.
Mating Connector and Harness Fit
The latch lock/eject hooks engage the mating housing's latch windows, so confirm the receptacle has the corresponding latch feature before committing the BOM line.