The EMA8J1795P170F45D from ECHO Microwave is a Band Pass Filter with Frequency 1.71 to 1.88 GHz, Insertion Loss 3 dB, Rejection 45 dB @ 1920~2170 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8J1795P170F45D can be seen below.