Q-Tech Corporation introduces the QT625S/QT725S Series of space-qualified hybrid surface acoustic wave (SAW) crystal oscillators, offering satellite and space craft designers exceptional performance for geosynchronous orbit (GEO) and other deeper space applications requiring the utmost in tolerance to radiation.

The 300kRad(Si) radiation-tolerant, sine-wave output QT625S (SAW) and QT725S (VCSO) oscillators are available with user-specified frequencies from 400 MHz to 1.3 GHz with exceptional frequency stability over a wide operating temperature range (-40°C to 85°C). Low phase noise (-135 dBc/Hz at 10 kHz offset and –168 dBc/Hz noise floor) and low vibration sensitivity (less than 2 ppb/g) combine to provide stable and reliable operation. 

The QT625S/QT725S Series is packaged in a hermetically sealed, in a 20-pin flat-pack 0.625” square, available with straight or formed leads. The devices are screened to MIL-PRF-55310, Level S or Modified MIL-PRF-38534, Class K. The QT725S Series VCSO offers engineers the expanded voltage control capability if desired.

“Q-Tech’s hybrid SAW oscillators have been developed to meet the critical needs of satellite manufacturers for ultra-high-reliability components in arguably the most environmentally stressful environments,” said Q-Tech’s Director of Sales and Marketing, Scott Sentz. “We are applying our 35-plus years of knowledge, experience and space heritage to deliver this world-class line of devices.”