The EMA8F2350P100C40D from ECHO Microwave is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Insertion Loss 1.3 dB, Rejection 40 to 60 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8F2350P100C40D can be seen below.