The KCI177520 from Konnect RF is a RF & Microwave Circulator with Frequency 0.35 to 0.5 GHz, Average Power 7.1 W, Insertion Loss 0.50 dB, Isolation 18 dB, Operating Temperature -30 to 55 Degree C. Tags: Drop-in Circulator. More details for KCI177520 can be seen below.