The EDA4E1880P56I15 from ECHO Microwave is a Band Pass Filter with Frequency 1.85 to 1.91 GHz, Insertion Loss 4.5 dB, Rejection 15 to 60 dB, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E1880P56I15 can be seen below.