The QT811 from Q-Tech Corporation is a Space Qualified Oscillator with Frequency 3 to 90 MHz, Temperature Stability ±0.5 ppm, ±1 ppm, ±2 ppm, ±4 ppm, ±5 ppm, ±10 ppm, Supply Voltage 5 V, Output Current 50 mA, Rise/Fall Time 5 ns. More details for QT811 can be seen below.
