The F1569 from WENTEQ Microwave Corp is a RF & Microwave Circulator with Frequency 800 MHz to 2 GHz, Average Power Forward 20 to 50 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -90 Degree C. Tags: Drop-in Circulator. More details for F1569 can be seen below.