The TC0201A from Tai-Saw Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1 to 2 dB, Capacitance 3.5 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0201A can be seen below.