INDUSTRY COMPONENT

Crystal Oscillator Core

Precision quartz crystal resonator providing stable frequency reference for oscillator ICs and amplifier circuits in electronic devices.

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Component Specifications

Definition
The Crystal Oscillator Core is a piezoelectric quartz crystal resonator that generates precise electrical oscillations at a specific frequency when subjected to an alternating electric field. It serves as the fundamental frequency-determining element in oscillator integrated circuits (ICs) and amplifier circuits, providing exceptional frequency stability, low phase noise, and high Q-factor for timing, clocking, and synchronization applications in electronic systems.
Working Principle
Operates on the piezoelectric effect where mechanical vibrations of a precisely cut quartz crystal slab generate stable electrical oscillations at its natural resonant frequency when excited by an AC voltage. The crystal's mechanical resonance (determined by its physical dimensions and cut) creates an electrical resonance circuit with minimal frequency drift over temperature and time.
Materials
AT-cut or SC-cut synthetic quartz crystal (SiO₂) with vacuum-deposited silver or gold electrodes, hermetically sealed in metal (Kovar) or ceramic packages with inert gas (nitrogen) filling.
Technical Parameters
  • ESR 10 Ω to 100 Ω
  • Aging <±5 ppm/year
  • Drive Level 10 μW to 100 μW
  • Frequency Range 1 MHz to 200 MHz
  • Load Capacitance 8 pF to 32 pF
  • Frequency Tolerance ±10 ppm to ±100 ppm
  • Temperature Stability ±10 ppm to ±50 ppm (-40°C to +85°C)
Standards
IEC 60122-1, IEC 60444, MIL-PRF-3098

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Crystal Oscillator Core.

quartz crystal resonator oscillator crystal frequency reference piezoelectric crystal timing component clock oscillator crystal unit HC-49 package Crystal Oscillator Core Crystal Oscillator Core in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Oscillator IC / Amplifier Circuit

Integrated circuit that generates and amplifies stable reference frequency signals

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Engineering Analysis

Risks & Mitigation
  • Frequency drift due to temperature changes
  • Mechanical shock damage
  • Contamination from outgassing
  • Electromigration at high drive levels
FMEA Triads
Trigger: Excessive mechanical stress during mounting
Failure: Crystal fracture or frequency shift
Mitigation: Use compliant mounting pads and controlled torque during assembly
Trigger: Moisture ingress through seal failure
Failure: Frequency drift and increased aging
Mitigation: Implement hermetic sealing with leak testing and moisture getters

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Frequency tolerance per IEC 60122-1, Class 1: ±50 ppm maximum
Test Method
Frequency measurement at 25°C with specified load capacitance using network analyzer per IEC 60444

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between a crystal oscillator core and a complete oscillator module?

The crystal oscillator core is just the quartz resonator that requires external circuitry (oscillator IC) to function, while a complete oscillator module includes the resonator, sustaining circuitry, and output buffer in one package.

Why is quartz used instead of other materials for oscillator cores?

Quartz exhibits excellent piezoelectric properties with low temperature coefficient, high Q-factor, and long-term stability, making it ideal for precision frequency control applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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