The EDA4E3300P400D45 from ECHO Microwave is a Band Pass Filter with Frequency 3.1 to 3.5 GHz, Insertion Loss 2 dB, Rejection 45 to 55 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E3300P400D45 can be seen below.