The QDC1623D from Qualwave is a RF & Microwave Circulator with Frequency 5.1 to 7 GHz, Bandwidth 110 to 800 MHz, Average Power 10 to 50 W, Insertion Loss 0.30 to 0.50 dB, Isolation 18 to 23 dB. Tags: Drop-in, Drop-in Circulator. More details for QDC1623D can be seen below.