The CMIIM2731 from Quantic Corry is a RF & Microwave Isolator with Frequency 2.7 to 3.1 GHz, Bandwidth 400 MHz, Average Power Forward 30 W, Average Power Reverse 3 W, Insertion Loss 0.4 dB. Tags: Surface Mount, Microstrip Isolator. More details for CMIIM2731 can be seen below.