The RFSP4TA5M18G from RF-Lambda is a RF Switch with Frequency 500 MHz to 18 GHz, Insertion Loss 2.8 to 3.5 dB, Isolation 60 to 65 dB, P1dB 24 dBm, P1dB 0.25 W. Tags: Module with Connectors, Solid State. More details for RFSP4TA5M18G can be seen below.