The C3337J5003AHF from TTM Technologies is a 90 Degree Hybrid Coupler with Frequency 3.3 to 3.9 GHz, Average Power 3 to 4 W, Insertion Loss 0.2 to 0.4 dB, Isolation 15 to 18 dB, Coupling 3 dB. Tags: Surface Mount. More details for C3337J5003AHF can be seen below.