The TC0329A from Tai-Saw Technology is a SAW Resonator with Frequency 639.965 to 640.035 MHz, Centre Frequency 640 MHz, Insertion Loss 1.21 to 2 dB, Capacitance 2.81 pF, Voltage 5 V. Tags: Surface Mount, SAW Resonator. More details for TC0329A can be seen below.