The TC0193A from Tai-Saw Technology is a SAW Resonator with Frequency 868.225 to 868.375 MHz, Centre Frequency 868.3 MHz, Insertion Loss 1.3 to 2.5 dB, Capacitance 2.52 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0193A can be seen below.