The RSF-433.920-1600-3030-TR-8N2 from Raltron is a Band Pass Filter with Frequency 433.12 to 434.72 MHz, Bandwidth 1600 kHz, Center Frequency 433.92 MHz, Insertion Loss 2 to 3.2 dB, Rejection 5 to 58 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-433.920-1600-3030-TR-8N2 can be seen below.