The T5459/DE from Smiths Interconnect is a RF & Microwave Isolator with Frequency 5.4 to 5.9 GHz, Average Power Forward 60 W, Average Power Reverse 1 W, Peak Power Forward 0.2 kW, Insertion Loss 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for T5459/DE can be seen below.