The TC0172A from Tai-Saw Technology is a SAW Resonator with Frequency 622.28 to 622.34 MHz, Centre Frequency 622.31 MHz, Insertion Loss 1 to 2 dB, Capacitance 2.99 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0172A can be seen below.