The CBF01014545B from Cernex Inc is a Band Pass Filter with Frequency 1.36 to 1.38 GHz, Bandwidth 22 MHz, Insertion Loss 4.5 dB, Upper Rejection 45 dB at 1.41GHz, Lower Rejection 50 dB at 1.33GHz. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CBF01014545B can be seen below.