The ADC089BD from ADMOTECH is a RF & Microwave Circulator with Frequency 851 to 941 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.35 to 0.5 dB, Isolation 17 to 19 dB. Tags: Drop-in Circulator. More details for ADC089BD can be seen below.