18QHTF21-6.870-PD

Overview

The Mercury Electronics 18QHTF21-6.870-PD is a high-frequency crystal oscillator designed for precision timing applications. This component operates at a fundamental frequency of 6.870 MHz, utilizing AT-cut quartz resonator technology to ensure stable oscillation characteristics. The device is housed in a standard surface-mount package, offering reliable performance across specified temperature ranges. It features low phase noise and high stability, making it suitable for communication systems and digital circuits requiring accurate clock signals. The unit is manufactured to meet industry standards for frequency tolerance and load capacitance requirements.

Feature Summary

• Utilizes AT-cut quartz resonator technology for enhanced frequency stability
• Designed for surface-mount integration with standardized footprint dimensions
• Engineered for low phase noise performance in high-frequency operations

Applications

• Communication equipment requiring precise clock synchronization
• Digital signal processing circuits needing stable reference frequencies
• Test and measurement instruments demanding high accuracy timing sources

Procurement Notes

Verify the specific load capacitance and frequency tolerance requirements against your circuit design before procurement. Ensure that the operating temperature range aligns with your environmental conditions. Confirm the packaging type matches your assembly capabilities. Cross-reference the datasheet specifications for electrical parameters to guarantee compatibility with your system's power supply and drive level constraints.

Selection Notes

Select this component based on its specific frequency output and stability requirements. Consider the package size for PCB layout constraints. Evaluate the temperature coefficient to ensure performance under varying environmental conditions. Compare the phase noise specifications against your system's sensitivity thresholds. Verify the drive level limits to prevent over-driving the resonator and affecting longevity.

Part Context

This part belongs to the series of high-frequency crystal oscillators produced by Mercury Electronics Ind. Co. Ltd. These components are typically used in applications where precise timing is critical. The model number indicates specific frequency and package variations within the product line. Understanding the broader family helps in identifying compatible substitutes or alternative solutions if needed.

Replacement Considerations

Check for direct substitutes from Mercury Electronics with identical pinouts and electrical characteristics. Verify that any replacement maintains the same frequency tolerance and stability class. Ensure the physical dimensions match the existing footprint to avoid rework. Consult official cross-reference lists for approved alternatives.