The TC0319A from Tai-Saw Technology is a SAW Resonator with Frequency 299.925 to 300.075 MHz, Centre Frequency 300 MHz, Insertion Loss 1.7 to 2.5 dB, Capacitance 5.01 pF, Voltage 12 V. Tags: Drop In, SAW Resonator. More details for TC0319A can be seen below.