The EMA8J2040P60I20D from ECHO Microwave is a Band Pass Filter with Frequency 2.01 to 2.07 GHz, Insertion Loss 4.5 dB, Rejection 20 to 60 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J2040P60I20D can be seen below.