The QHDZ-2Z-3.5G SQ from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 3.3 to 3.7 GHz, Average Power 30 W, Insertion Loss 0.30 dB, Isolation 20 dB, Coupling -3 dB. Tags: Surface Mount. More details for QHDZ-2Z-3.5G SQ can be seen below.