The BP33R3257S165A from Sangshin is a Band Pass Filter with Frequency 3175 to 3340 MHz, Center Frequency 3257.5 MHz, Insertion Loss 2 dB, Upper Rejection 18 to 25 dB, Lower Rejection 18 dB. Tags: Surface Mount, Dielectric Filter. More details for BP33R3257S165A can be seen below.