The BFCN-2450 from Mini Circuits is a Band Pass Filter with Frequency 2.4 to 2.55 GHz, Center Frequency 2450 MHz, Insertion Loss 2 to 2.9 dB, Rejection 20 to 30 dB, Upper Rejection 20 to 30 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BFCN-2450 can be seen below.