The 2SLE4NA from Renaissance Electronics Corporation is a RF & Microwave Isolator with Frequency 1.8 to 1.88 GHz, Average Power Forward 10 W, Average Power Reverse 0.25 W, Insertion Loss 0.8 dB, Isolation 17 dB. Tags: Surface Mount, Surface Mount Isolator. More details for 2SLE4NA can be seen below.