The BP2500B0805CT from Frontier Electronics is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Insertion Loss 1 dB, Rejection 20 to 25 dB, VSWR 2.00:1, Operating_Temperature -40 to 85 Degree C. Tags: Surface Mount, Ceramic Filter. More details for BP2500B0805CT can be seen below.