The RSF-876.500-35000-1109-TR-NS2 from Raltron is a Band Pass Filter with Frequency 858.5 to 893.5 MHz, Bandwidth 35 MHz, Center Frequency 876 MHz, Insertion Loss 1.8 to 3 dB, Rejection 38 to 22 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-876.500-35000-1109-TR-NS2 can be seen below.