U.FL (UMCC) receptacle, 50 Ohm, 1 GHz — Hirose UM-LR-PC(41)
The Hirose UM-LR-PC(41) is a U.FL (UMCC) style receptacle with a male pin contact, part of the UM series. It is a miniature coaxial connector designed for RF signal paths where board space is tight — think module-to-antenna or internal RF jumper connections in wireless devices, GPS receivers, or compact radio modules. Rated to 1 GHz, it covers the ISM bands, cellular, and GNSS frequencies comfortably.
Through-hole right-angle mount — board-edge fit
The snap-on fastening means the mating plug clicks into place without threads; it is quick to engage but requires the correct mating plug with the matching U.FL interface.
Last Buy — plan your final order
Hirose has placed the UM-LR-PC(41) into Last Buy status. That means this part is in its final production run and will not be manufactured after the last-buy window closes. For any BOM that currently specifies this connector, the procurement action is to secure the lifetime quantity now. There is no official successor order code on record from Hirose for this exact part, so the replacement path is either a last-time buy of this MPN or a qualification of a different U.FL receptacle from the same or another manufacturer.
This receptacle mates with a U.FL (UMCC) style plug — typically a crimp or solder-type plug on a coaxial cable. The shield termination is solder, and the centre contact termination is also solder, so assembly requires soldering the centre pin and the outer shield to the PCB pads. The dielectric material is PTFE, which provides stable impedance and low loss at RF frequencies.