The TC0248A from Tai-Saw Technology is a SAW Resonator with Frequency 432.9 to 433.1 MHz, Centre Frequency 433 MHz, Insertion Loss 0.9 to 2 dB, Capacitance 4.77 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0248A can be seen below.