The RSF-1950.00-60000-1411-TR from Raltron is a Band Pass Filter with Frequency 1920 to 1980 MHz, Bandwidth 60000 kHz, Center Frequency 1950 MHz, Insertion Loss 4.2 dB, Rejection 25 to 30 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1950.00-60000-1411-TR can be seen below.