The TD0103A from Tai-Saw Technology is a SAW Resonator with Frequency 433.845 to 433.995 MHz, Centre Frequency 433.92 MHz, Insertion Loss 7 to 9 dB, Capacitance 2.3 to 2.9 pF, Quality Factor Unloaded 8000. Tags: Surface Mount, SAW Resonator. More details for TD0103A can be seen below.