The HMC574AMS8E from Analog Devices is a RF Switch with Frequency DC to 3 GHz, Insertion Loss 0.3 to 0.25 dB, Isolation 16 to 30 dB, P1dB 31 to 39 dBm, P1dB 1.258 to 7.943 W. Tags: Surface Mount, Solid State. More details for HMC574AMS8E can be seen below.