The PE83IR1041 from Pasternack Enterprises Inc is a RF & Microwave Isolator with Frequency 18 to 26.5 GHz, Average Power Forward 10 W, Insertion Loss 1.7 dB, Isolation 14 dB, Operating Temperature -40 to 80 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for PE83IR1041 can be seen below.