The TC0586A from Tai-Saw Technology is a SAW Resonator with Frequency 1039.95 to 1040.05 MHz, Centre Frequency 1040 MHz, Insertion Loss 1.6 to 2 dB, Capacitance 2.3 pF, Voltage 3 V. Tags: Surface Mount, SAW Resonator. More details for TC0586A can be seen below.