The BP33R1880S60B from Sangshin is a Band Pass Filter with Frequency 1850 to 1910 MHz, Bandwidth 60 MHz, Center Frequency 1880 MHz, Insertion Loss 2.2 dB, Upper Rejection 15 to 40 dB. Tags: Surface Mount, Dielectric Filter. More details for BP33R1880S60B can be seen below.