The OX-249 from Microchip Technology is a Space-Qualified Oscillator that operates from 10-100 MHz. It requires a supply voltage of 5 V and takes a load of up to 50 ohms. This oven-controlled oscillator has a rise/fall time of 5 ns and a duty cycle of about 40 - 60 %. It has a typical output power of +7.5 dBm and an output VSWR of 2:1. This crystal oscillator has a mass of 13.4 gms and a tuning voltage of 4 V. It has a frequency stability of ±100 ppb, a harmonic of -35 dBc, and a spurious of -80 dBc. It is suitable for applications such as deep space exploration, commercial, and defense satellites, and ground base ICBM silos.