The DDC8701040 from DEEWAVE Electronics is a RF & Microwave Circulator with Frequency 8.7 to 10.4 GHz, Average Power Forward 10 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -40 to 85 Degree C. Tags: Drop-in Circulator. More details for DDC8701040 can be seen below.