The RO3132A from Murata is a SAW Resonator with Frequency 311.92 to 312.075 MHz, Centre Frequency 312 MHz, Insertion Loss 1.4 to 2.2 dB, Capacitance 0.74 pF, Quality Factor Loaded 2000. Tags: Surface Mount, SAW Resonator. More details for RO3132A can be seen below.