The RSF-266.000-200-7050-TR from Raltron is a Band Pass Filter with Frequency 265.9 to 266.1 MHz, Bandwidth 200 kHz, Center Frequency 266 MHz, Insertion Loss 5 dB, Rejection 18 to 40 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-266.000-200-7050-TR can be seen below.