The JAE UB-MC5ABR3-M04-4S-TB-1 NMP is a USB micro AB receptacle from the UB series, designed for board-edge applications where a low-profile, mid-mount SMT footprint is needed.
This receptacle mounts to a board cutout in a horizontal, mid-mount orientation — the connector body sits partially recessed into the PCB, reducing the overall z-height above the board surface compared to a standard right-angle USB port. The unshielded shell is steel, stainless grade, so there is no ground plane connection through the shell — the signal return path must be handled through the PCB ground pour.
Ratings and Operating Range
The current rating is given as 0.5A, 1A, 1.8A — these are per-contact limits that vary by which pin in the micro-AB pinout is carrying the load. The VBUS pin is rated higher than the signal pins, so the 1.8A figure applies to the power contact. The UL94 V-0 housing is the expected flame rating for a connector inside a consumer or industrial enclosure.