The EMA8J1950P60G50D from ECHO Microwave is a Band Pass Filter with Frequency 1.92 to 1.98 GHz, Insertion Loss 3.5 dB, Rejection 45 to 50 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J1950P60G50D can be seen below.