The RSF-920.000-2000-2016-TR from Raltron is a Band Pass Filter with Frequency 919 to 921 MHz, Bandwidth 2000 kHz, Center Frequency 920 MHz, Insertion Loss 5 dB, Rejection 20 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-920.000-2000-2016-TR can be seen below.