The CER0664A from CTS Electronic Components is a Band Pass Filter with Frequency 1.71 to 1.76 GHz, Bandwidth 45 MHz, Insertion Loss Less than 2.5 dB, Rejection 40 to 45 dB, Power 1 to 10 W. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CER0664A can be seen below.