The HC25F03 from Yantel Corporation is a 90 Degree Hybrid Coupler with Frequency 2.1 to 2.7 GHz, Average Power 20 W, Insertion Loss 0.20 to 0.30 dB, Isolation 23 to 26 dB, Coupling 3 dB. Tags: Surface Mount. More details for HC25F03 can be seen below.