The RO3112E from Murata is a SAW Resonator with Frequency 433.345 to 433.495 MHz, Centre Frequency 433.42 MHz, Insertion Loss 1.2 to 2.5 dB, Capacitance 3.7 pF, Quality Factor Loaded 1000. Tags: Surface Mount, SAW Resonator. More details for RO3112E can be seen below.