The RSF-869.000-8000-3030-TR from Raltron is a Band Pass Filter with Frequency 865 to 873 MHz, Bandwidth 8000 kHz, Center Frequency 869 MHz, Insertion Loss 3.5 to 4 dB, Rejection 58 to 20 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-869.000-8000-3030-TR can be seen below.