The IMB330380CK from 3Rwave is a RF & Microwave Isolator with Frequency 3.3 to 3.8 GHz, Average Power Forward 50 W, Average Power Reverse 8 W, Insertion Loss 0.3 to 0.4 dB, Isolation 18 to 23 dB. Tags: Surface Mount Isolator. More details for IMB330380CK can be seen below.