The EMA6E1575P2B40B from ECHO Microwave is a Band Pass Filter with Frequency 1.57 to 1.58 GHz, Insertion Loss 0.8 dB, Rejection 40 to 45 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6E1575P2B40B can be seen below.