The EMA6F1450P100D55D from ECHO Microwave is a Band Pass Filter with Frequency 1.4 to 1.5 GHz, Insertion Loss 2 dB, Rejection 55 dB @ 1574 to 1577 MHz, Return Loss 16 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6F1450P100D55D can be seen below.