The MSQ80300 from Synergy Microwave Corporation is a 90 Degree Hybrid Coupler with Frequency 800 MHz to 3 GHz, Average Power 20 W, Insertion Loss 0.5 to 1 dB, Isolation 13 to 18 dB, Coupling 3 dB. Tags: Surface Mount. More details for MSQ80300 can be seen below.