The EMA8G1650P49F20D from ECHO Microwave is a Band Pass Filter with Frequency 1.63 to 1.68 GHz, Insertion Loss 3 dB, Rejection 20 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8G1650P49F20D can be seen below.