The QMC-JFI12-8305 from Quantum Microwave is a Waveguide Isolator with Frequency 81 to 86 GHz, Bandwidth 5 GHz, Insertion Loss 0.6 to 0.9 dB, Power 1.5 W, Isolation 16 to 19 dB. Tags: Ferrite Junction Isolator. More details for QMC-JFI12-8305 can be seen below.