The SCZ3500L(R)3R from Partron is a RF & Microwave Isolator with Frequency 3.4 to 3.6 GHz, Average Power Forward 150 W, Insertion Loss 0.3 dB, Isolation 20 dB, Return Loss 20 dB. Tags: Surface Mount, Surface Mount Isolator. More details for SCZ3500L(R)3R can be seen below.