The EMA10F2535P70E50D from ECHO Microwave is a Band Pass Filter with Frequency 2.5 to 2.57 GHz, Insertion Loss 2.5 dB, Rejection 10 to 50 dB, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA10F2535P70E50D can be seen below.