18QHTF21-73.816666-PD

Overview

The 18QHTF21-73.816666-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 73.816666 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power management
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock generation in embedded systems
• Timing reference for digital signal processing circuits
• Communication equipment requiring stable frequency sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific RoHS or environmental compliance certifications required for your application region.

Selection Notes

Select this component when a precise 73.816666 MHz clock source is required with low power consumption capabilities. The LVCMOS output ensures compatibility with standard digital logic families. Consider the 1.8V operating voltage when designing power delivery networks. The small form factor makes it suitable for space-constrained designs where high stability is needed.

Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics and packaging. Mercury Electronics specializes in frequency control products, providing reliable timing solutions for industrial and consumer electronics markets.

Replacement Considerations

Direct replacements must match the 73.816666 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and thermal performance. Cross-reference with other manufacturers offering similar XO specifications if availability is an issue.