The TG0401A Series from Sainty-Tech Communications Limited is a RF & Microwave Isolator with Frequency 0.4 to 0.6 GHz, Bandwidth 10% (Relative), Average Power Reverse 10 W (Load), Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Coaxial Isolator. More details for TG0401A Series can be seen below.