The CMIG306 from Quantic Corry is a RF & Microwave Isolator with Frequency 1.8 to 4.2 GHz, Bandwidth 200 MHz, Average Power Forward 10/50/100 W, Average Power Reverse 1 W, Insertion Loss 0.3 dB. Tags: Drop-In, Drop-In Isolator. More details for CMIG306 can be seen below.