The RSR-314.50-250-X from Raltron is a SAW Resonator with Frequency 314.25 to 314.75 MHz, Centre Frequency 314.5 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-314.50-250-X can be seen below.