U.FL (UMCC) Receptacle — 50 Ohm, 6 GHz, SMT
The 1566230-1: The body is phosphor bronze, the dielectric is liquid crystal polymer (LCP), and the center contact carries gold plating.
No direct replacement order code is listed in the available records. Engineers should evaluate a pin-compatible U.FL receptacle from the same or alternate manufacturer, verifying the 50 Ohm impedance, 6 GHz bandwidth, SMT footprint, and snap-on mating style against the board layout and RF budget.
RF Performance and Fit Notes
With a maximum frequency of 6 GHz and insertion loss of 0.24 dB, this connector suits short internal RF jumpers in Wi-Fi, Bluetooth, and cellular modules where the signal path is a few centimetres. The 50 Ohm impedance is standard for most RF front-ends, so the trace width and ground-plane clearance on the PCB must match the launch geometry to avoid a mismatch. The 30 mating cycles mean this is a set-and-forget interconnect — not a test-port or frequent-disconnect point. The snap-on retention is quick to engage but provides less axial pull strength than a threaded coupling; the board-side solder joint carries the mechanical load.