The TH101AS Series from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 1.2 to 2.5 GHz, Bandwidth 10%, Insertion Loss 0.6 dB, Isolation 46 dB, Operating Temperature -40 to 85 Degree C. Tags: Coaxial Circulator. More details for TH101AS Series can be seen below.