The RO3112C from Murata is a SAW Resonator with Frequency 433.345 to 433.495 MHz, Centre Frequency 433.42 MHz, Insertion Loss 1.2 to 1.5 dB, Capacitance 3.8 pF, Quality Factor Loaded 920. Tags: Surface Mount, SAW Resonator. More details for RO3112C can be seen below.