The BP48R1842S155A from Sangshin is a Band Pass Filter with Frequency 1765 to 1920 MHz, Bandwidth 155 MHz, Center Frequency 1842.5 MHz, Insertion Loss 1.7 to 2.6 dB, Upper Rejection 30 to 35 dB. Tags: Surface Mount, Dielectric Filter. More details for BP48R1842S155A can be seen below.