The TC0532A from Tai-Saw Technology is a SAW Resonator with Frequency 644.843 to 644.903 MHz, Centre Frequency 644.873 MHz, Insertion Loss 1.36 to 2 dB, Capacitance 2.68 pF, Voltage 3 V. Tags: Surface Mount, SAW Resonator. More details for TC0532A can be seen below.