The BFCN-3085A from Mini Circuits is a Band Pass Filter with Frequency 2.8 to 3.4 GHz, Bandwidth 600 MHz, Center Frequency 3085 MHz, Insertion Loss 1.5 to 2.5 dB, Rejection 20 dB @ 4210 and 7800 MHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for BFCN-3085A can be seen below.