The EMA6E947P25E35D from ECHO Microwave is a Band Pass Filter with Frequency 935 to 960 MHz, Insertion Loss 2.3 dB, Rejection 35 dB @ 935 to 960 MHz, Return Loss 18 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6E947P25E35D can be seen below.