The TC0254A from Tai-Saw Technology is a SAW Resonator with Frequency 622.114 to 622.214 MHz, Centre Frequency 622.164 MHz, Insertion Loss 1 to 2 dB, Capacitance 2.99 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0254A can be seen below.