18QHTF21-51.6826-OE

Overview

The 18QHTF21-51.6826-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, designed for precision timing applications. It operates at a fixed frequency of 51.6826 MHz and utilizes LVCMOS output logic levels. The component is powered by a 1.8V supply voltage and includes enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Feature Summary

• Provides stable 51.6826 MHz clock signal generation
• Features LVCMOS output interface compatibility
• Supports low voltage operation at 1.8V
• Includes hardware enable/disable control capability

Applications

• Precision timing circuits requiring specific frequency references
• Digital systems utilizing LVCMOS logic standards
• Compact electronic devices necessitating small form factor oscillators

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your circuit design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check if the enable/disable pin configuration meets your power management strategy. Consult the official datasheet for detailed electrical characteristics and operating temperature ranges to ensure reliability in your specific application environment.

Selection Notes

Select this component when a precise 51.6826 MHz frequency is required within a low-power, space-constrained design. The LVCMOS output makes it suitable for digital logic interfaces. Consider the 1.8V operating voltage for compatibility with modern low-voltage systems. The enable/disable feature offers flexibility for power-sensitive applications. Evaluate the 4-SMD package size against available board space. Compare performance metrics such as phase noise and stability against other oscillators if high-precision timing is critical for your system.

Part Context

This part belongs to Mercury Electronics' line of standard crystal oscillators, specifically the 18QHT series. These components are designed for general-purpose timing needs. The manufacturer specializes in frequency control products including quartz crystals and various oscillator types. This specific model represents a standard XO variant optimized for compact electronics.

Replacement Considerations

Direct substitutes may include other 51.6826 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify voltage, output type, and pinout compatibility before substitution. Cross-reference with similar Mercury models like 18QHTF21-50.256-OE for different frequencies.