The TC0447A from Tai-Saw Technology is a SAW Resonator with Frequency 904.25 to 904.35 MHz, Centre Frequency 904.3 MHz, Insertion Loss 1.46 to 2.2 dB, Capacitance 2.35 pF, Voltage 3 V. Tags: Surface Mount, SAW Resonator. More details for TC0447A can be seen below.