The BFCN-7900 from Mini Circuits is a Band Pass Filter with Frequency 7.8 to 8.1 GHz, Bandwidth 300 MHz, Center Frequency 7900 MHz, Insertion Loss 1.6 to 2.5 dB, Rejection 20 dB @ 6800 and 9300 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BFCN-7900 can be seen below.