The TC0274A from Tai-Saw Technology is a SAW Resonator with Frequency 314.925 to 315.075 MHz, Centre Frequency 315 MHz, Insertion Loss 1.5 to 2.5 dB, Capacitance 4.14 pF, Quality Factor Unloaded 8000. Tags: Surface Mount, SAW Resonator. More details for TC0274A can be seen below.