The ADC375CSQH from ADMOTECH is a RF & Microwave Circulator with Frequency 3.7 to 3.8 GHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.45 dB, Isolation 19 dB. Tags: Coaxial Circulator. More details for ADC375CSQH can be seen below.