The BP33R1842S75B from Sangshin is a Band Pass Filter with Frequency 1805 to 1880 MHz, Bandwidth 75 MHz, Center Frequency 1842.5 MHz, Insertion Loss 2 dB, Upper Rejection 8 to 25 dB. Tags: Surface Mount, Dielectric Filter. More details for BP33R1842S75B can be seen below.