What the 5000 Mating Cycles Mean for Your Design
The UX20-MB-5P: 5000 mating cycles is a high figure for a USB connector — typical USB mini B connectors are rated for 5000 to 10000 cycles, so this sits at the lower end of the high-cycle range. The gold-plated contacts resist fretting corrosion over repeated insertions, which matters for field-serviceable equipment where the cable is plugged and unplugged regularly. If your application requires a USB mini B that will see daily connection cycles, this connector is specced for it.
Compatibility and Pinout
This is a USB mini B plug — it mates with any standard USB mini B receptacle. The 5-pin pinout follows the USB 2.0 standard: pin 1 (VBUS, +5V), pin 2 (D-), pin 3 (D+), pin 4 (ID, not connected in mini B), pin 5 (GND). It is not compatible with mini A receptacles, which have a different mechanical keying. The connector is USB 2.0 compliant, meaning it supports 480 Mbps data rate and is backward compatible with USB 1.1 and 1.0 devices.
Sourcing Reality for a Last-Buy Part
The UX20-MB-5P carries a Last Buy lifecycle status. Hirose has announced end-of-production — the part is no longer being manufactured and is only available through distributor inventory that has not yet sold through, or via a last-time-buy window that has likely closed.