The CBF01015565B from Cernex Inc is a Band Pass Filter with Frequency 1.64 to 1.67 GHz, Bandwidth 23 MHz, Insertion Loss 5.5 dB, Upper Rejection 65 dB at 1.72GHz, Lower Rejection 90 dB at 1.6GHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CBF01015565B can be seen below.