The IMA180188AK from 3Rwave is a RF & Microwave Isolator with Frequency 1.8 to 1.88 GHz, Average Power Forward 120 W, Average Power Reverse 10 W, Insertion Loss 0.22 to 0.28 dB, Isolation 22 to 27 dB. Tags: Drop-In, Drop-In Isolator. More details for IMA180188AK can be seen below.