U.FL-Class Plug for Tight RF Signal Paths
6 GHz Ceiling and 50 Ohm Impedance
Rated for 50 Ohm systems to 6 GHz, this plug covers the common ISM bands, GPS /L5, and most Wi-Fi/BT sub-6 GHz frequencies. The impedance is set by the dielectric — Liquid Crystal Polymer (LCP) — and the geometry of the coaxial interface. For a board layout engineer, the SMT footprint must maintain a 50 Ohm trace transition through the launch; the datasheet's recommended land pattern is the reference. The 20 mating cycle rating is typical for this connector class — it is designed for the module-to-antenna or module-to-cable connection that mates once at build and sees limited field service, not a daily-disconnect test port.
Mating Half: X.FL-R-SMT-1(80) Receptacle
This plug mates with the X.FL-R-SMT-1(80) receptacle (male pin) from the same X.FL series. Both share the 50 Ohm impedance, 6 GHz ceiling, and snap-on retention. The plug carries the female socket; the receptacle carries the male pin. If you are sourcing the pair for a cable assembly or board-to-board RF link, the receptacle order code is X.FL-R-SMT-1(80). A sibling within the broader U.FL family, the U.FL-PR-SMT2.5-1(10), is also a snap-on plug but is rated for 10 mating cycles versus the 20 cycles of this part — a meaningful difference if the application requires more reconnection events.