The ADC190CNQH from ADMOTECH is a RF & Microwave Circulator with Frequency 1.8 to 2 GHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.45 dB, Isolation 18 dB. Tags: Coaxial Circulator. More details for ADC190CNQH can be seen below.