The QC-052-YR3 from Quantic PMI (Planar Monolithics) is a 90 Degree Hybrid Coupler with Frequency 500 MHz to 2 GHz, Average Power 10 W, Isolation 18 dB, Coupling 3 Db, Amplitude Balance ± 2.5 dB. Tags: Module with Connectors. More details for QC-052-YR3 can be seen below.