The EMA6F2500P120D35D from ECHO Microwave is a Band Pass Filter with Frequency 2.44 to 2.56 GHz, Insertion Loss 1.8 dB, Rejection 35 dB @ 2350 MHz, Return Loss 13 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6F2500P120D35D can be seen below.