The KFF6384A from CTS Electronic Components is a Band Pass Filter with Frequency 1.02 to 1.04 GHz, Bandwidth 20 MHz, Insertion Loss Less than 3 dB, Rejection 32 to 40 dB, Operating_Temperature 0 to 25 Degree C. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for KFF6384A can be seen below.