USB 2.0 Mini B Receptacle for Board-Edge Mount
The shielded phosphor bronze shell and palladium-nickel contact finish are specified for the USB 2.0 signal environment, where the shield bleeds common-mode noise before it reaches the differential data pair.
Board Lock and Solder Retention
Palladium-Nickel Contacts — a Durability Choice
The contact finish is palladium-nickel rather than the more common gold flash. Pd-Ni is harder and more wear-resistant than gold at similar thickness, which translates to a higher mating cycle life before the base metal shows through. For a USB mini B receptacle that sees daily plug-unplug cycles in field-service equipment, this plating delays the fretting corrosion that eventually raises contact resistance on standard gold-over-nickel parts.