The Molex 476420001 is a micro USB B receptacle from the 47642 series, a 5-contact right-angle SMT connector designed for board-edge mounting. It is the standard device-side USB 2.0 interface — the mating half for any micro USB B plug cable. The shielded steel shell provides EMI containment, and the gold-plated contacts handle the signal and power lines of a USB connection. The horizontal mid-mount orientation places the receptacle flush with the PCB edge, so the mating plug inserts parallel to the board — a common layout for portable electronics, test equipment, and handheld devices where the USB port sits on the board edge.
The 10,000 mating cycle rating is well above the typical 5,000 cycles for a standard micro USB connector. This part is built for applications where the USB port sees frequent connect/disconnect cycles — field-service tools, data loggers, or programming jigs — without the contact wear that would cause intermittent connections on a lower-cycle part. The current rating splits into 1A and 1.8A per contact. In a USB pinout, the VBUS power contact carries the higher current for charging or power delivery, while the data lines operate at the lower figure. The shielded shell (steel, stainless) is grounded through the PCB pads to bleed EMI from the cable shield before it reaches the signal contacts. For a clean USB signal path, the PCB layout should connect the shield pads to the system ground plane with a low-impedance trace.
Mounting and Assembly Details
This is a right-angle SMT part with solder retention features and a pick-and-place vacuum pick area — it feeds through a standard SMT line without special handling. The board-edge cutout in the PCB profile allows the receptacle body to sit partially through the board edge, keeping the mating interface flush with the enclosure wall.