The TC0317A from Tai-Saw Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1.58 to 2.2 dB, Capacitance 2.95 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0317A can be seen below.