The TC0247A from Tai-Saw Technology is a SAW Resonator with Frequency 666.721 to 666.791 MHz, Centre Frequency 666.761 MHz, Insertion Loss 1.3 to 2 dB, Capacitance 2.8 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0247A can be seen below.