The EMA15H1795P170D40D from ECHO Microwave is a Band Pass Filter with Frequency 1.71 to 1.88 GHz, Insertion Loss 2 dB, Rejection 40 dB @ 380 to 960 MHz, Return Loss 16 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA15H1795P170D40D can be seen below.