The EMA4C1575P2F10A from ECHO Microwave is a Band Pass Filter with Frequency 1.57 to 1.58 GHz, Insertion Loss 2.9 dB, Rejection 10 to 18 dB, Return Loss 13 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA4C1575P2F10A can be seen below.