The EMA8G1500P12F40D from ECHO Microwave is a Band Pass Filter with Frequency 1.49 to 1.51 GHz, Insertion Loss 2.9 dB, Rejection 40 dB @ Fc+30 MHz, Return Loss 12 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8G1500P12F40D can be seen below.