The IMA180188AA from 3Rwave is a RF & Microwave Isolator with Frequency 1.8 to 1.88 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.23 to 0.3 dB, Isolation 22 to 26 dB. Tags: Drop-In, Drop-In Isolator. More details for IMA180188AA can be seen below.