Q-Tech Corporation

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Q-Tech Corporation

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Since 1972, Q-Tech has become the world’s leading manufacturer of high-reliability crystal oscillators. Q-Tech’s space-qualified and radiation hardened oscillators have more than 35 years of successful flight heritage servicing the international space community.

As the leading U.S. manufacturer of qualified products to MIL-PRF-55310 as well as ultra-high reliability standards such as Aerospace Corporation TOR (GPS III) and NASA GSFC specifications, Q-Tech services the military, aerospace, down-hole, and deep space industries, achieving boundless success stories in its four decades of partnership with the customers. Parts designed and manufactured by Q-Tech have excelled in environments ranging from kilometers below the Earth’s crust, to deep space missions far beyond the Solar System.

Crystal Oscillator (XO) for Space

Q-Tech is a leading provider in Space Crystal Oscillators are all radiation tolerant to at least 100kRad (Si) TID. Its full space designs offer radiation tolerance up to 300kRad (Si) TID.

Features:

  • Made in the USA – ECCN: EAR99
  • DFARS 252-225-7014 Compliant Electronic Component Exemption
  • Broad frequency range from 15kHz to 250MHz (for higher frequencies please consult the factory)
  • Rugged 4-point mount (SMD ceramic) or 3 point mount (others) shock resistant
  • Small packages and footprints offering 5x7mm SMT and leaded with 4-point crystal mount
  • 100kRad (Si) tolerant
  • ACMOS, LVCMOS, TTL, LVDS, LVPECL
  • Tristate Output option (-D) except for LVDS and LVPECL (standard)
  • Hermetically sealed package
  • Fundamental and 3rd Overtone design
  • Swept Quartz Crystal or Cultured Quartz Crystal
  • Low phase noise and jitter
  • Q-Tech does not use pure lead or pure tin in its products
  • Custom screening and QCI available with MCM part number
  • MIL-PRF-55310/9, /16, /21, /26, /27, /28, /30, /33, /34, /35, /36, /37, /38, /39, /40 equivalent

High reliability / Space TCXO (Temperature Compensated Crystal Oscillator)

Q-Tech Corporation’s QT800 Space TCXO products offer the tightest stability for space applications in a hybrid flat pack or DDIP package.

Features:

  • ± 3 PPM total error budget for 18 years
  • Stability as low as ±0.5ppm
  • Radiation Tolerant to 100kRad (Si)
  • Low Phase Noise and Jitter
  • MIL-PRF-55310, Level S Screening and Quality Conformance Inspection
  • Voltages available: 3.3V, 5V, 12V, and 15V
  • Frequency Range: 3MHz to 350MHz

High Reliability / Space VCXO (Voltage Controlled Crystal Oscillator)

Features:

  • Flat packs as small as .625″ x .625″
  • High reliability space VCXOs feature low jitter and low phase noise
  • Available in flat packages or DIP

OCXO (Oven Controlled Crystal Oscillator)

Q-Tech has extensive experience in creating standard and customized Oven Controlled Crystal Oscillator (OCXO) solutions for the Space and Defense markets. Oven Controlled Crystal Oscillators (OCXOs) feature remarkable performance in terms of frequency stability, ageing and g-sensitivity.

Features:

  • Ultra rugged, Sine, HCMOS
  • SC-cut crystal utilized in the design guarantees ±1 ppb / g vibration sensitivity
  • Stability to ±10 ppb

SAW (Surface Acoustic Wave) Oscillator

Q-Tech offers high frequency & low phase noise performance SAW (SOs) and Voltage Controlled SAW Oscillators (VCSOs).

Features:

  • -170 dB noise floor at 1.3+ GHz output frequency
  • Frequencies from 400 MHz to 1.3+ GHz
  • Absolute Pull range (APR) ±20ppm min.

MCXO (Microcomputer Compensated Crystal Oscillator)

 Q-Tech’s microcomputer compensated crystal oscillator (MCXO) uses a high stability, overtone SC-cut crystal with microprocessor-controlled compensation. The self-temperature sensing resonator, using a dual-mode oscillator, virtually eliminates thermometry related errors. As a result, all basic TCXO and OCXO limitations are overcome or significantly reduced in the MCXO, and it can provide performance equivalent to an OCXO, but with 105 mW maximum power consumption!

Features:

  • OCXO performance with less than 90 mW power consumption
  • Initialization time: < 5 seconds from power on to full performance
  • Startup time: 20 ms to ±50 ppm


Q-Tech Corporation was the first company to appear on the MIL-O-55310 (now MIL-PRF-55310) qualified products list.

Data SheetQ-Tech PackageDimensions (mm)MIL Part NumberDevice TypeLogic TypeSupply VoltageFrequency RangePackage Type
MIL-PRF-55310/08QT10T22.53 x 13.72 x 5.08M55310/08J w/ AMENDMENT 1XOTTL5Vdc50Hz to 50MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/09QT1T9.14 x 9.14 x 6.60M55310/09J w/ AMENDMENT 1XOTTL5Vdc400kHz to 60MHzTransistor Outline (TO) 8 Pin
MIL-PRF-55310/10QT3T13.72 x 13.72 x 7.62M55310/10J w/ AMENDMENT 1XOTTL5Vdc375kHz to 60MHzTransistor Outline (TO) 8 Pin
MIL-PRF-55310/11QT10C22.53 x 13.72 x 5.08M55310/11G w/ AMENDMENT 1XOCMOS10 to 15Vdc.05MHz to 10MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/12QT1C9.14 x 9.14 x 6.60M55310/12H w/ AMENDMENT 1XOCMOS10 to 15Vdc.05MHz to 10MHzTransistor Outline (TO) 8 Pin
MIL-PRF-55310/13QT3C13.72 x 13.72 x 7.62M55310/13JXOCMOS10 to 15Vdc300Hz to 10MHzTransistor Outline (TO) 8 Pin
MIL-PRF-55310/14QT4T22.53 x 13.72 x 5.08M55310/14H w/ AMENDMENT 1XOTTL5Vdc.1Hz to 25MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/15QT10C22.53 x 13.72 x 5.08M55310/15G w/ AMENDMENT 1XOCMOS6.75 to15Vdc.01Hz to 10MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/16QT6T22.35 x 12.83 x 5.08M55310/16KXOTTL5Vdc.1Hz to 80MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/17QT6T w/Gate22.35 x 12.83 x 5.08M55310/17F w/ AMENDMENT 1XOTTL5Vdc250kHz to 50MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/18QT6C22.35 x 12.83 x 5.08M55310/18F w/ AMENDMENT 1XOCMOS5 to 15Vdc.01Hz to 15MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/19QT66T12.19 x 12.19 x 2.16M55310/19E w/ AMENDMENT 1XOTTL5Vdc1MHz to 60MHzLeadless Chip Carrier (LCC) 40 Pin
MIL-PRF-55310/20QT62T16.51 x 16.51 x 2.16M55310/20FXOTTL5Vdc40kHz to 60MHzLeadless Chip Carrier (LCC) 44 Pin
MIL-PRF-55310/21QT24T15.88 x 15.88 x 3.05M55310/21HXOTTL5Vdc1MHz to 60MHzFlat Pack (FP) 20 Pin
MIL-PRF-55310/26QT6HC22.35 x 12.83 x 5.08M55310/26D w/ AMENDMENT 1XOHCMOS5Vdc.01MHz to 65MHzDual In-line (DIP-14) 14 Pin
MIL-PRF-55310/26QT41HC20.70 x 13.08 x 5.08M55310/26D w/ AMENDMENT 1XOHCMOS5Vdc.01MHz to 65MHzDual In-line (DIP-14) 4 Pin
MIL-PRF-55310/27QT78HCD13.97 x 8.89 x 4.32M55310/27EXOHCMOS5Vdc1MHz to 85MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/28QT78TD13.97 x 8.89 x 4.32M55310/28DXOTTL5Vdc1MHz to 85MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/29QT66HCD12.19 x 12.19 x 2.16M55310/29CXOHCMOS (Tristate)5Vdc.2MHz to 72MHzLeadless Chip Carrier (LCC) 40 Pin
MIL-PRF-55310/30QT78LD13.97 x 8.89 x 4.32M55310/30EXOCMOS3.3Vdc450kHz to 100MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/33QT88HCD8.89 x 7.37 x 4.32M55310/33DXOCMOS5Vdc500kHz to 85MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/34QT88LD8.89 x 7.37 x 4.32M55310/34DXOCMOS3.3Vdc500kHz to 150MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/35QT88ND8.89 x 7.37 x 4.32M55310/35CXOCMOS2.5Vdc1MHz to 133MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/36QT88RD8.89 x 7.37 x 4.32M55310/36CXOCMOS1.8Vdc4MHz to 100MHzSurface Mount (SMD) J-Lead 4 Pin
MIL-PRF-55310/37QT92HCD8.89 x 7.37 x 4.83M55310/37CXOCMOS5Vdc500kHz to 85MHzSurface Mount (SMD) Formed Lead 4 Pin
MIL-PRF-55310/38QT92LD8.89 x 7.37 x 4.83M55310/38CXOCMOS3.3Vdc500kHz to 150MHzSurface Mount (SMD) Formed Lead 4 Pin
MIL-PRF-55310/39QT92ND8.89 x 7.37 x 4.83M55310/39CXOCMOS2.5Vdc4MHz to 133MHzSurface Mount (SMD) Formed Lead 4 Pin
MIL-PRF-55310/40QT92RD8.89 x 7.37 x 4.83M55310/40CXOCMOS1.8Vdc4MHz to 100MHzSurface Mount (SMD) Formed Lead 4 Pin