The EMA6E2655P170C20D from ECHO Microwave is a Band Pass Filter with Frequency 2.57 to 2.74 GHz, Insertion Loss 1.5 dB, Rejection 20 to 30 dB, Return Loss 14 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6E2655P170C20D can be seen below.