The ADC330CD from ADMOTECH is a RF & Microwave Circulator with Frequency 3.1 to 3.5 GHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.35 to 0.45 dB, Isolation 18 to 20 dB. Tags: Drop-in Circulator. More details for ADC330CD can be seen below.