The KCI177539 from Konnect RF is a RF & Microwave Circulator with Frequency 0.145 to 0.155 GHz, Average Power 50 W, Insertion Loss 0.6 dB, Isolation 23 dB, Operating Temperature -10 to 60 Degree C. Tags: Drop-in Circulator. More details for KCI177539 can be seen below.