The KFF6595A from CTS Electronic Components is a Band Pass Filter with Frequency 1.53 to 1.58 GHz, Bandwidth 50 MHz, Insertion Loss Less than 2.6 dB, Rejection 30 to 36 dB, Power 1 to 10 W. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for KFF6595A can be seen below.