The BP0EA2540A7 from KYOCERA AVX is a Band Pass Filter with Frequency 2.020 to 3.210 GHz, Center Frequency 2.54 GHz, Insertion Loss 1.88 dB, Rejection 30 to 40 dB, Upper Rejection 30 to 40 dB. Tags: Surface Mount, Ceramic Filter. More details for BP0EA2540A7 can be seen below.