The HMC190BMS8 / 190BMS8E from Analog Devices is a RF Switch with Frequency DC to 3 GHz, Insertion Loss 0.4 to 1.0 dB, Isolation 19 to 30 dB, P1dB 23 to 30 dBm, P1dB 0.199 to 1 W. Tags: Surface Mount, Solid State. More details for HMC190BMS8 / 190BMS8E can be seen below.