The TC0305A from Tai-Saw Technology is a SAW Resonator with Frequency 744.675 to 744.925 MHz, Centre Frequency 744.8 MHz, Insertion Loss 1.2 to 2 dB, Capacitance 2.754 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0305A can be seen below.