The IMB180188CK from 3Rwave is a RF & Microwave Isolator with Frequency 1805 to 1880 MHz, Average Power Forward 80 W, Average Power Reverse 8 W, Insertion Loss 0.25 to 0.35 dB, Isolation 20 to 25 dB. Tags: Surface Mount Isolator. More details for IMB180188CK can be seen below.