The EDA4F3500P70J18 from ECHO Microwave is a Band Pass Filter with Frequency 3.47 to 3.54 GHz, Insertion Loss 5 dB, Rejection 18 to 33 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F3500P70J18 can be seen below.