The TC0243A from Tai-Saw Technology is a SAW Resonator with Frequency 403.891 to 404.041 MHz, Centre Frequency 403.966 MHz, Insertion Loss 0.8 to 2 dB, Capacitance 3.65 pF, Quality Factor Unloaded 14000. Tags: Surface Mount, SAW Resonator. More details for TC0243A can be seen below.