The P4T-0R5G18G-55-R-SFF-PN from Quantic PMI (Planar Monolithics) is a RF Switch with Frequency 500 MHz to 18 GHz, Insertion Loss 3.2 dB, Isolation 55 dB, Power 20 dBm, Power 0.1 W. Tags: Module with Connectors, Solid State. More details for P4T-0R5G18G-55-R-SFF-PN can be seen below.