The EMA8J1680P120F60D from ECHO Microwave is a Band Pass Filter with Frequency 1.62 to 1.74 GHz, Insertion Loss 3 dB, Rejection 60 dB @ 1530 MHz, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J1680P120F60D can be seen below.