The X3C21P2-03S from TTM Technologies is a 90 Degree Hybrid Coupler with Frequency 1.8 to 2.3 GHz, Average Power 140 to 150 W, Insertion Loss 0.12 to 0.22 dB, Isolation 23 to 25 dB, Coupling 3 dB. Tags: Surface Mount. More details for X3C21P2-03S can be seen below.