The EDA4F1250P280B40 from ECHO Microwave is a Band Pass Filter with Frequency 1.11 to 1.39 GHz, Insertion Loss 1 dB, Rejection 40 to 60 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4F1250P280B40 can be seen below.