18QHTF21-51.666-OE

Overview

The 18QHTF21-51.666-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 51.666 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic compatibility
• Integrated enable and disable functionality
• Compact 4-SMD no lead surface mount package

Applications

• Embedded systems requiring precise clocking
• Industrial control equipment
• High-performance digital circuits

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 no lead footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a 51.666 MHz clock signal is required with low-voltage operation. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the enable pin feature if power management or clock gating is necessary within the target application architecture for optimized energy efficiency.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz-based frequency control products. The series typically offers standard XO solutions with various frequency options. Mercury Electronic has been a pioneer in the Taiwan crystal industry since 1973, providing reliable timing components for global electronics manufacturing.

Replacement Considerations

Direct substitutes include other 51.666 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify equivalent electrical parameters such as supply voltage, output swing, and phase noise characteristics. Ensure the replacement part supports the same enable/disable control mechanism and physical dimensions for seamless integration.