The EMA8F2655P70E49B from ECHO Microwave is a Band Pass Filter with Frequency 2.62 to 2.69 GHz, Insertion Loss 2.5 dB, Rejection 49 dB @ 2500 to 2570 MHz, Return Loss 15 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA8F2655P70E49B can be seen below.