The EDA4H3300P400G50 from ECHO Microwave is a Band Pass Filter with Frequency 3.1 to 3.5 GHz, Insertion Loss 3.5 dB, Rejection 50 dB @ 2900MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H3300P400G50 can be seen below.