The EMA8H1090P10I25D from ECHO Microwave is a Band Pass Filter with Frequency 1.09 to 1.1 GHz, Insertion Loss 4.5 dB, Rejection 25 to 40 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8H1090P10I25D can be seen below.