The IS-13/NF from MCLI is a RF & Microwave Isolator with Frequency 4.8 to 5.4 GHz, Insertion Loss 0.5 dB, Isolation 18 dB, Operating Temperature 0 to 55 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-13/NF can be seen below.