The EDA4F3300P400E40 from ECHO Microwave is a Band Pass Filter with Frequency 3.1 to 3.5 GHz, Insertion Loss 2.5 dB, Rejection 40 dB @ 2500MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F3300P400E40 can be seen below.