The EMA10F2655P70D40D from ECHO Microwave is a Band Pass Filter with Frequency 2.62 to 2.69 GHz, Insertion Loss 2 dB, Rejection 40.0 dB @ 2500 to 2570MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA10F2655P70D40D can be seen below.