The EDA3D1250P20G30 from ECHO Microwave is a Band Pass Filter with Frequency 1.24 to 1.26 GHz, Insertion Loss 3.5 dB, Rejection 30 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA3D1250P20G30 can be seen below.