The TC0654A from Tai-Saw Technology is a SAW Resonator with Frequency 662.4518 to 662.4982 MHz, Centre Frequency 662.475 MHz, Insertion Loss 1.9 to 3 dB, Capacitance 1.59 pF, Voltage 5 V. Tags: Surface Mount, SAW Resonator. More details for TC0654A can be seen below.