The QHDZ-2H-0.45G from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 350 to 525 MHz, Average Power 125 W, Insertion Loss 0.25 to 0.3 dB, Isolation 25 to 27 dB, Coupling -3 dB. Tags: Surface Mount. More details for QHDZ-2H-0.45G can be seen below.