JST UB-MC5BR3-SD204-4S-1-TB NMP — USB Micro B Receptacle, 10000 Mating Cycles
It is a surface-mount, right-angle connector mounted horizontally.
10000 Mating Cycles — The Real Duty Differentiator
The mating cycle rating is 10000 cycles. The gold finish on the contacts supports that cycle life.
Unshielded — What That Means for Layout
The UB-MC5BR3-SD204-4S-1-TB NMP is listed as unshielded, with a steel, stainless shell. That shell provides mechanical robustness and some ESD bleed path through the ground pins.
Solder Retention — Holds During Reflow and After
The features list includes solder retention — those are the extra surface-mount tabs on the sides of the connector body. They anchor the part to the PCB during reflow so the connector doesn't tombstone or shift when the paste wets. After soldering, they take the mechanical shear and peel forces from cable insertion and removal, keeping the signal pins from cracking their solder joints. For a right-angle USB connector that sees regular cable yanking, those retention tabs are what keep the board from needing a rework station.
Active, ROHS3 — Sourcing Reality
Lifecycle status is Active, and the part is ROHS3 compliant. The base product number is UB-MC5BR.