The TH101A Series from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 1.2 to 2.5 GHz, Bandwidth 10%, Insertion Loss 0.3 dB, Isolation 23 dB, Operating Temperature -40 to 85 Degree C. Tags: Coaxial Circulator. More details for TH101A Series can be seen below.