The EMA4E1415P10F40D from ECHO Microwave is a Band Pass Filter with Frequency 1.41 to 1.42 GHz, Insertion Loss 3 dB, Rejection 40 dB @ 1165 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA4E1415P10F40D can be seen below.