USB-B Receptacle for Edge-Mounted USB 2.0 Ports
The FCI 61729-1011RLF is a shielded USB-B (USB Type-B) receptacle with 4 contacts, designed for through-hole right-angle mounting on a PCB.
Board Lock and Shielding for Reliable USB Connectivity
On a USB-B receptacle that sees frequent connect-disconnect cycles, this lock prevents the shell from lifting off the board or the solder joints from cracking under the leverage of a stiff cable. The full shield is made of copper alloy and wraps the contact area, providing EMI containment for the USB 2.0 differential pair — important when the port is on a noisy digital board or near a switching power supply. Thin flash plating would wear through in a few hundred cycles, exposing the base metal and raising contact resistance. At 1500 cycles, this receptacle is built for field-serviceable equipment or lab instruments where the cable is plugged and unplugged regularly, not for a one-time factory harness.
USB 2.0 vs USB 3.0 — Know the Spec Limit
It is not electrically or mechanically compatible with USB 3.0 or 3.1 Type-B connectors, which use a different contact arrangement and additional high-speed differential pairs. If your design requires SuperSpeed data transfer, this is the wrong connector. For standard USB 2.0 peripheral ports — printers, scanners, external drives, data acquisition modules — it is a direct fit.