The SDI-3436 from Sierra Microwave Technology is a RF & Microwave Isolator with Frequency 3.4 to 3.6 GHz, Average Power Forward 4 W, Peak Power Forward 0.03 kW, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Drop-In, Drop-In Isolator. More details for SDI-3436 can be seen below.