The EMA6H847P30I40D from ECHO Microwave is a Band Pass Filter with Frequency 832 to 862 MHz, Insertion Loss 4.5 dB, Rejection 40 dB @ 791 to 821 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6H847P30I40D can be seen below.