The T4XR1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 4.6 to 5.3 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.5 dB, Isolation 17 dB. Tags: Microstrip, Microstrip Isolator. More details for T4XR1 can be seen below.