The RSF-2140.000-60000-1109-TR-NS6 from Raltron is a Band Pass Filter with Frequency 2110 to 2170 MHz, Bandwidth 60000 kHz, Center Frequency 2140 MHz, Insertion Loss 1.7 to 2.5 dB, Rejection 50 to 20 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-2140.000-60000-1109-TR-NS6 can be seen below.