The EMA10L1500P120C40DL from ECHO Microwave is a Band Pass Filter with Frequency 1.44 to 1.56 GHz, Insertion Loss 1.5 dB, Rejection 30 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA10L1500P120C40DL can be seen below.