The R993 from Qualcomm is a SAW Resonator with Frequency 315.02 MHz, Centre Frequency 315.02 MHz, Insertion Loss 1.5 to 2 dB, Capacitance 3.4 pF, Quality Factor Unloaded 7000 to 10500. Tags: Surface Mount, SAW Resonator. More details for R993 can be seen below.