The TC0170AB from Tai-Saw Technology is a SAW Resonator with Frequency 433.870 to 433.920 MHz, Centre Frequency 433.9 MHz, Insertion Loss 1.6 to 2.5 dB, Capacitance 2.63 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0170AB can be seen below.