The TC0636A from Tai-Saw Technology is a SAW Resonator with Frequency 434 to 434.2 MHz, Centre Frequency 434.1 MHz, Insertion Loss 1.68 to 2.2 dB, Capacitance 3.09 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0636A can be seen below.