The YXCI0301S2-100 from Talee Microwave Limited is a RF & Microwave Isolator with Frequency 0.3825 to 0.4125 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.5 dB, Isolation 50 dB. Tags: Coaxial Isolator. More details for YXCI0301S2-100 can be seen below.