The ADC175BF from ADMOTECH is a RF & Microwave Circulator with Frequency 1.5 to 2 GHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.5 to 0.65 dB, Isolation 14 to 16 dB. Tags: Drop-in Circulator. More details for ADC175BF can be seen below.