The EDA4J2833P40N5 from ECHO Microwave is a Band Pass Filter with Frequency 2.81 to 2.85 GHz, Insertion Loss 7 dB, Rejection 5 to 50 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4J2833P40N5 can be seen below.