The EDA4F4000P40H40 from ECHO Microwave is a Band Pass Filter with Frequency 3.98 to 4.02 GHz, Insertion Loss 4 dB, Rejection 40 to 60 dB, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F4000P40H40 can be seen below.