The RO3075E from Murata is a SAW Resonator with Frequency 344.9 to 345.1 MHz, Centre Frequency 345 MHz, Insertion Loss 1.4 to 2.2 dB, Capacitance 4.3 pF, Quality Factor Loaded 4200. Tags: Surface Mount, SAW Resonator. More details for RO3075E can be seen below.