The EDA4E1282P144D30 from ECHO Microwave is a Band Pass Filter with Frequency 1.21 to 1.35 GHz, Insertion Loss 1.7 dB, Rejection 14 to 38 dB, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4E1282P144D30 can be seen below.