The BP2400B0603AT from Frontier Electronics is a Band Pass Filter with Frequency 2.3 to 2.39 GHz, Insertion Loss 2 dB, Rejection 15 to 29 dB, VSWR 2.00:1, Operating_Temperature -40 to 85 Degree C. Tags: Surface Mount, Ceramic Filter. More details for BP2400B0603AT can be seen below.