The QDC6466H from Qualwave is a RF & Microwave Circulator with Frequency 20 to 400 MHz, Bandwidth 175 MHz, Average Power Forward 10 to 100 W, Insertion Loss 0.4 to 2 dB, Isolation 18 to 20 dB. Tags: Drop-In, Drop-in Circulator. More details for QDC6466H can be seen below.