The EMA8F2072P100C50C from ECHO Microwave is a Band Pass Filter with Frequency 2.02 to 2.12 GHz, Insertion Loss 1.5 dB, Rejection 50 to 85 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8F2072P100C50C can be seen below.