The HHM2917B1 from TDK is a Directional Coupler with Frequency 2.4 to 2.5 GHz, Coupling 9.8 to 11.8 dB, Insertion Loss 0.66 to 0.75 dB, Isolation 28 to 31.6 dB, Return Loss 13.98 to 15.6 dB. Tags: Surface Mount. More details for HHM2917B1 can be seen below.