The TC0251A from Tai-Saw Technology is a SAW Resonator with Frequency 389.9 to 390.1 MHz, Centre Frequency 390 MHz, Insertion Loss 0.9 to 2 dB, Capacitance 5.43 pF, Voltage 12 V. Tags: Surface Mount, SAW Resonator. More details for TC0251A can be seen below.