The HMC545A / 545AE from Analog Devices is a RF Switch with Frequency DC to 3 GHz, Insertion Loss 0.3 to 0.27 dB, Isolation 19 to 31 dB, P1dB 20 to 33 dBm, P1dB 0.1 to 1.995 W. Tags: Surface Mount, Solid State. More details for HMC545A / 545AE can be seen below.