The XC0900A-03S from TTM Technologies is a 90 Degree Hybrid Coupler with Frequency 811 MHz to 1 GHz, Average Power 175 to 225 W, Insertion Loss 0.12 to 0.15 dB, Isolation 23 to 25 dB, Coupling 3 dB. Tags: Surface Mount. More details for XC0900A-03S can be seen below.