The R920 from Qualcomm is a SAW Resonator with Frequency 433.92 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1.4 to 1.8 dB, Capacitance 2.4 pF, Quality Factor Unloaded 8500 to 12500. Tags: Surface Mount, SAW Resonator. More details for R920 can be seen below.