The TC0217A from Tai-Saw Technology is a SAW Resonator with Frequency 433.77 to 434.07 MHz, Centre Frequency 433.92 MHz, Insertion Loss 1 to 2 dB, Capacitance 3 pF, Quality Factor Loaded 1500. Tags: Surface Mount, SAW Resonator. More details for TC0217A can be seen below.