The ADC074BD from ADMOTECH is a RF & Microwave Circulator with Frequency 728 to 757 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.25 to 0.35 dB, Isolation 19 to 21 dB. Tags: Drop-in Circulator. More details for ADC074BD can be seen below.