The EMA6D1575P20B35D from ECHO Microwave is a Band Pass Filter with Frequency 1.57 to 1.59 GHz, Insertion Loss 1 dB, Rejection 35 dB @ 100 to 1415 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6D1575P20B35D can be seen below.