The EMA8G814P6G50D from ECHO Microwave is a Band Pass Filter with Frequency 811 to 817 MHz, Insertion Loss 3.3 dB, Rejection 50 dB @ Fc ± 30 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8G814P6G50D can be seen below.