The EDA4F4750P500D65 from ECHO Microwave is a Band Pass Filter with Frequency 4.5 to 5 GHz, Insertion Loss 2 dB, Rejection 65 dB @ 3500MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F4750P500D65 can be seen below.