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Fox Electronics crystals, oscillators, TCXOs, VCXOs, and filters are used worldwide in applications ranging from wireless communications to aerospace equipment. For more than 30 years, Fox has provided solutions for the toughest frequency control problems. The company is famed for its pioneering role in forging technology breakthroughs that have changed the landscape of the frequency control industry. Most recently, Fox's revolutionary XpressO line of configurable oscillators has given design engineers new levels of delivery flexibility, shorter lead-times, and reduced costs...all without compromising the very highest levels of electrical performance.

Fox Product Line

Fox New Products

Added 07/2009 Fox 3.3V Ultra Miniature TCXO/VCTCXO Oscillators Learn More

Fox Featured Products

Fox High Temperature Crystals

Fox High Temperature Crystals include an option for maximum operating temperature up to 125ºC. These high temperature crystals from Fox also offer crystals that are low in cost, have ultra-low profile, and are resin sealed or have resistance weld construction. Maximum tolerances range from 10 PPM to ±20 PPM and maximum stabilities range from 5 PPM to ±20 PPM.

Fox HC49 Series Resistance Weld Crystals

Fox has expanded the HC49 Resistance Weld Crystal product line to include additional options. Fox's HC49 Series Resistance Weld Crystals feature a frequency tolerance of ±30PPM, a frequency stability of ±50PPM, and an operating temperature range of -20ºC to +70ºC. Fox's HC49 Series Resistance Weld Crystals are available with options for tolerances to 10PPM, frequency stabilities to 5PPM, and operating temperatures of -40ºC to +105ºC. HC49 Series Resistance Weld Crystals' maximum height is 3.2 mm.

Xpresso™ Oscillators

Fox's Xpresso family of low jitter HCMOS crystal oscillators is a breakthrough in configurable frequency control solutions. Available in XOs and VCXOs versions with 2.5V and 3.3V, the devices feature 1pS phase jitter and frequencies from 0.75MHz to 1350MHz.

Fox All Quartz SMD Crystals - FQ Series

Fox offers surface mount FQ Series All Quartz Crystals that are low cost and have an ultra low profile. The FQ series is designed with tolerances to ±30PPM, stabilities to ±20PPM, and a temperature range from 0°C to +70ºC. Fox's All Quartz Crystals are RoHS compliant and are Pb-free.

Fox 3.3V Ultra Miniature TCXO/VCTCXO Oscillators

Fox offers new 3.3V Ultra Miniature TCXO/VCTCXO Oscillators with a maximum height of 1.5mm (5.0 x 3.2 x 1.5) and HCMOS or clipped sinewave output. These low cost 3.3V Ultra Miniature TCXO/VCTCXO Oscillators from Fox feature frequency ranges from 10.000 ~ 35.000MHz, operating temperature ranges from -20ºC ~ +85ºC, and pullability of ±5.0 ~ ±15.0 PPM.