Vectron International, a Knowles company, and a leader in the design and manufacture of precision oscillators and timing solutions for communication,industrial, military & space applications, announced another addition to their Evacuated Miniature Crystal Oscillator (EMXO) family. The EX-421 offers superb stability, small size, low power and fast warm-up capability. The product was featured at the Electronica Trade Show in Munich, Germany from November 11-14, 2014.

“We continue to innovate to meet the demands for smaller, lower power products over a wide range of environmental conditions” said David Bail, general manager of the precision oscillator segment. “This next generation EMXO design offers our customers improved temperature stability, phase noise, and better aging in a low power miniature device ideal for portable or battery powered applications”.

Leveraging Vectron's patented EMXO technology, the EX-421 prolongs battery life in challenging environmental applications while maintaining traditional precision OCXO performance. Performance is not sacrificed even though the power consumption is less than 20 percent of a conventional OCXO. This next generation EMXO features faster warm-up time, low g-sensitivity and the industries best phase noise performance in a low power evacuated OCXO, while improving the temperature stability by a factor of 3 from the previous generation EMXO. This product is ideal for airborne equipment, tactical radio, high end instrumentation and demanding operating environments.

Key Features

  • Standard Frequencies: 10, 20and 100 MHz
  • Low Power Consumption: 0.25 W steady state vs. 1.5 W steady state OCXO
  • Fast Warm-up: 60 sec vs. 5 min of conventional OCXO; +/-100 ppb of final frequency
  • Temperature Stability: +/-30 ppb, -40° to +85°C
  • Small Form Factor: 13x 13x 10 mm

In addition to the EX-421, Vectron also offers customer’s innovative precision solutions including OCXOs, TCXOs, VCXOs, VCSOs, XOs, SAW Filter and jitter attenuators that offer low phase noise and ultra-low jitter timing solutions.

Vectron’s EX-421 is available direct at or through an authorized Vectron representative. For more information on this or any other Vectron products please contact a customer service representative at 1-888-328-7661.

For more information, please call 1-888-328-7661 or visit