The QDC0915D from Qualwave is a RF & Microwave Circulator with Frequency 7000 to 16000 MHz, Bandwidth 6000 MHz, Average Power Forward 10 to 50 W, Insertion Loss 0.3 to 0.60 dB, Isolation 17 to 23 dB. Tags: Drop-In, Drop-in Circulator. More details for QDC0915D can be seen below.