The CER0002A from CTS Electronic Components is a Band Pass Filter with Frequency 869 to 894 MHz, Bandwidth 25 MHz, Insertion Loss Less than 3.5 dB, Rejection 9 to 18 dB, Operating_Temperature 0 to 25 Degree C. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CER0002A can be seen below.