The RFLC090M19M23 from RF-Lambda is a RF & Microwave Circulator with Frequency 190 to 230 MHz, Average Power Forward 50 W, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -20 to 70 Degree C. Tags: Coaxial Circulator. More details for RFLC090M19M23 can be seen below.