The HMC547ALC3 from Analog Devices is a RF Switch with Frequency DC to 28 GHz, Insertion Loss 1.9 to 3.7 dB, Isolation 30 to 45 dB, P1dB 16 to 26 dBm, P1dB 0.039 to 0.398 W. Tags: Surface Mount, Solid State. More details for HMC547ALC3 can be seen below.