The EDA4H2790P40I10 from ECHO Microwave is a Band Pass Filter with Frequency 2.77 to 2.81 GHz, Insertion Loss 4.5 dB, Rejection 10 to 60 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H2790P40I10 can be seen below.