The RFLC101M30M50 from RF-Lambda is a RF & Microwave Circulator with Frequency 300 to 500 MHz, Average Power Forward 50 W, Insertion Loss 0.9 dB, Isolation 17 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for RFLC101M30M50 can be seen below.