The S5665A from Cirocomm Technology Corp is a Band Pass Filter with Frequency 5490 to 5835 MHz, Bandwidth 345 MHz, Center Frequency 5662.5 MHz, Insertion Loss 2.7 dB, Rejection 40 dB. Tags: Surface Mount, Ceramic Filter, BAW Filter, Dielectric Filter. More details for S5665A can be seen below.