The EDA4F4700P500D20 from ECHO Microwave is a Band Pass Filter with Frequency 4.45 to 4.95 GHz, Insertion Loss 2 dB, Rejection 20 to 60 dB, Return Loss 13 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F4700P500D20 can be seen below.