The TC0250A from Tai-Saw Technology is a SAW Resonator with Frequency 435.625 to 435.795 MHz, Centre Frequency 435.72 MHz, Insertion Loss 1.2 to 2 dB, Capacitance 3.08 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0250A can be seen below.