The EDA4H1350P300F50 from ECHO Microwave is a Band Pass Filter with Frequency 1.2 to 1.5 GHz, Insertion Loss 3 dB, Rejection 50 dB @ 1050MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EDA4H1350P300F50 can be seen below.