The EMA6F2832P30E45D from ECHO Microwave is a Band Pass Filter with Frequency 2.82 to 2.85 GHz, Insertion Loss 2.5 dB, Rejection 45 dB @ 2772 MHz, Return Loss 16 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for EMA6F2832P30E45D can be seen below.