The YXDC0402A from Talee Microwave Limited is a RF & Microwave Circulator with Frequency 350 to 550 MHz, Average Power Forward 100 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -15 to 65 Degree C. Tags: Drop-in Circulator. More details for YXDC0402A can be seen below.