The RSF-1960.000-60000-1109-TR-NS3 from Raltron is a Band Pass Filter with Frequency 1930 to 1990 MHz, Bandwidth 60 MHz, Center Frequency 1960 MHz, Insertion Loss 2.0 to 2.7 dB, Rejection 34 to 25 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1960.000-60000-1109-TR-NS3 can be seen below.