The TC0244A from Tai-Saw Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 0.9 to 2 dB, Capacitance 4.77 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0244A can be seen below.