The SD10620 from Honeywell is a RF & Microwave Isolator with Frequency 2 to 4 GHz, Insertion Loss 0.4 to 0.5 dB, Isolation 18 to 20 dB, Return Loss 18 to 20 dB, Operating Temperature -10 to 65 Degree C. Tags: Coaxial Isolator. More details for SD10620 can be seen below.