The EDA4F5000P250F40 from ECHO Microwave is a Band Pass Filter with Frequency 4.88 to 5.13 GHz, Insertion Loss 3 dB, Rejection 40 dB @ 4550MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F5000P250F40 can be seen below.