Quartz Oscillators

FEI builds High-Precision Quartz Oscillators for mission critical solutions for space, land, sea and air applications in Assured Position Navigation and Timing (APNT), Electronic Warfare (EW) and Time Distribution. FEI has in-house production capabilities of quartz fabrication to produce resonators and timing systems. Superior crystal oscillator precision is required for both time and frequency in precision instrument applications such as synthesizers, counters and spectrum analyzers. The same high-end performance characteristics are required in satellite transmissions, geophysical survey positioning systems, and standard time/time-interval generation and transfer. Using breakthrough design and packaging concepts, FEI has applied advanced technologies to create a line of quartz crystal oscillators featuring the best of all worlds… small size, precision, stability, reliability, and low cost.

Frequency Electronics Inc. (FEI) offers a range of high-precision quartz oscillators, designed to provide accurate and stable frequency references for various applications. Here are some key aspects of FEI’s quartz oscillators:

Types of Quartz Oscillators

  • Standard Crystal Oscillators (XO): Basic quartz oscillators offering reliable frequency control.
  • Temperature-Compensated Crystal Oscillators (TCXO): Incorporate temperature compensation to maintain frequency stability across temperature variations.
  • Oven-Controlled Crystal Oscillators (OCXO): Enclosed in a temperature-controlled oven to provide extremely high stability and low phase noise.



  • Telecommunications: Used in base stations, network equipment, and synchronization systems.
  • Defense and Aerospace: Provide precise timing and frequency control for navigation, radar, and communication systems.
  • Instrumentation: Serve as stable reference clocks in various measuring and testing equipment.
  • Satellite and Space Systems: Ensure reliable frequency performance in the challenging conditions of space.


Features and Benefits

  • High Stability: FEI’s quartz oscillators are known for their excellent frequency stability, minimizing drift over time and temperature changes.
  • Low Phase Noise: Critical for applications requiring clean signal generation, such as high-performance communication systems and sensitive instrumentation.
  • Precision and Reliability: Built to meet stringent industry standards, FEI’s oscillators deliver consistent and reliable performance.
  • Customizable Solutions: FEI offers tailored solutions to meet specific customer requirements, ensuring optimal performance for specialized applications.


Long Successful Legacy

FEI’s quartz oscillators are a key component in ensuring the accuracy and reliability of electronic systems across various high-tech industries. Their commitment to quality and innovation makes them a trusted supplier in the frequency control market.Oscillators generate a stable and precise electronic signal used for timing and synchronization in various applications. They are essential components in communication systems, navigation equipment, and digital electronics, ensuring reliable performance and accuracy. FEI builds oscillators to custom customer requirements.

For a more detailed list of various custom made quartz oscillators delivered on various past programs, click here.

Which unit fits your requirements

FEI builds many types of oscillators and quick descriptions of the various options are listed below.

VCXOs (Voltage Controlled Crystal Oscillator)

VCXOs offer fine-tuned frequency control through an external voltage input, making them ideal for applications requiring dynamic frequency adjustments. They are widely used in telecommunications, instrumentation, and phase-locked loops (PLLs) due to their stability and precise control.

OCXO (Oven Controlled Crystal Oscillator)

OCXOs provide exceptional frequency stability by maintaining the crystal at a constant, optimal temperature using a built-in oven. This results in minimal frequency drift, making OCXOs perfect for high-precision applications such as GPS systems, telecom networks, and scientific research.

Quartz Oscillators

Quartz oscillators use the mechanical resonance of a quartz crystal to generate accurate and stable frequencies. Their reliability and low phase noise make them suitable for a broad range of applications, including clocks, watches, radios, and embedded systems.

Crystal Filters

Crystal filters are used to select or reject specific frequency bands with high precision. They are essential in radio receivers, transmitters, and other communication devices where filtering out unwanted frequencies is crucial for clear signal transmission and reception.

MEMS Compensated Oscillators

MEMS (Micro-Electro-Mechanical Systems) compensated oscillators combine MEMS technology with advanced compensation techniques to deliver high stability in a compact form. These oscillators are ideal for portable and space-constrained devices, offering robustness against environmental changes and low power consumption.

DRO (Dielectric Resonator Oscillator)

DROs use a dielectric resonator to achieve high frequency stability and low phase noise, primarily at microwave frequencies. They are commonly used in radar systems, satellite communications, and high-frequency communication links where performance and precision are critical.

CRO (Crystal Resonator Oscillator)

CROs utilize a crystal resonator to generate a precise oscillating signal. Known for their stability and accuracy, CROs are used in applications where maintaining a consistent frequency is vital, such as in frequency synthesizers, measurement equipment, and communication systems.

Each of these products from Frequency Electronics is designed to meet the specific needs of various high-tech industries, ensuring precision, stability, and reliability in their respective applications.

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