The TC0178A from Tai-Saw Technology is a SAW Resonator with Frequency 804.806 to 805.056 MHz, Centre Frequency 804.931 MHz, Insertion Loss 1.5 to 2.5 dB, Capacitance 2.88 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0178A can be seen below.