The RSF-862.000-14000-2015-TR-NS1 from Raltron is a Band Pass Filter with Frequency 0.855 to 0.869 GHz, Bandwidth 14 MHz, Center Frequency 862 MHz, Insertion Loss 1.5 to 3 dB, Rejection 50 to 30 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-862.000-14000-2015-TR-NS1 can be seen below.