The RSR-433.92-250-X from Raltron is a SAW Resonator with Frequency 433.67 to 434.17 MHz, Centre Frequency 433.92 MHz, Insertion Loss 2.5 dB (Resonant Loss), Capacitance 3.2 pF, Operating Temperature -10 to 60 Degree C. Tags: Drop In, SAW Resonator. More details for RSR-433.92-250-X can be seen below.