The EMA5F1680P80H20D from ECHO Microwave is a Band Pass Filter with Frequency 1.64 to 1.72 GHz, Insertion Loss 4 dB, Rejection 20 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA5F1680P80H20D can be seen below.