The RFSL2939D-T50 from RF-CI is a RF & Microwave Isolator with Frequency 2.7 to 3.1 GHz, Average Power Forward 50 W, Average Power Reverse 50 W, Peak Power Forward 0.5 kW, Insertion Loss 0.35 to 0.5 dB. Tags: Drop-In, Drop-In Isolator. More details for RFSL2939D-T50 can be seen below.