The QT824 from Q-Tech Corporation is a Space Qualified Oscillator with Frequency 10 to 350 MHz, Spurious -70 dBc, Temperature Stability ±0.5 ppm, ±1 ppm, ±2 ppm, ±4 ppm, ±5 ppm, ±10 ppm, Supply Voltage 5 V, Output Current 50 mA. More details for QT824 can be seen below.