The EMA8H860P18E25D from ECHO Microwave is a Band Pass Filter with Frequency 851 to 869 MHz, Insertion Loss 2.5 dB, Rejection 25 dB @ 500 to 824MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8H860P18E25D can be seen below.