The TC0317B from Tai-Saw Technology is a SAW Resonator with Frequency 433.880 to 433.960 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 TC0317B can be seen below.