The CER0104A from CTS Electronic Components is a Band Pass Filter with Frequency 824 to 849 MHz, Bandwidth 25 MHz, Insertion Loss Less than 2.6 dB, Rejection 20 to 24 dB, Operating_Temperature 0 to 70 Degree C. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CER0104A can be seen below.