The TA6F from Connor-Winfield Corporation is a Space Qualified Oscillator with Frequency 6.4 to 50 MHz, Frequency Stability ±1 ppm, Supply Voltage 3.3 V, Output Current 3 to 6.5 mA, Rise/Fall Time 4 to 8 ns. Tags: Surface Mount. More details for TA6F can be seen below.