The CER0771A from CTS Electronic Components is a Band Pass Filter with Frequency 2.07 to 2.21 GHz, Bandwidth 140 MHz, Insertion Loss Less than 2.5 dB, Rejection 20 to 27 dB, Power 3 to 30 W. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for CER0771A can be seen below.