The TC0330A from Tai-Saw Technology is a SAW Resonator with Frequency 433.741 to 433.891 MHz, Centre Frequency 433.816 MHz, Insertion Loss 0.9 to 2 dB, Capacitance 4.72 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0330A can be seen below.