The TC0270A from Tai-Saw Technology is a SAW Resonator with Frequency 649.006 to 649.076 MHz, Centre Frequency 649.046 MHz, Insertion Loss 1.3 to 2 dB, Capacitance 2.87 pF, Quality Factor Unloaded 10000. Tags: Surface Mount, SAW Resonator. More details for TC0270A can be seen below.