18QHTF21-3.2768-OE

Oscillators Overview

The 18QHTF21-3.2768-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fundamental frequency of 3.2768 MHz with a frequency stability of ±50 ppm. The device utilizes an LVCMOS output logic level and requires a supply voltage of 1.8 V. It features an enable/disable function for power management. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications. The operating temperature range extends from -40°C to 85°C, ensuring reliability in various environmental conditions.

Oscillators Feature Summary

• Integrates an enable/disable control function for efficient power management
• Delivers stable LVCMOS output signals with high frequency accuracy
• Utilizes a quartz crystal base resonator for precise timing generation

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Consumer electronics utilizing standard clock interfaces
• Embedded systems needing reliable timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail is stable within the specified limits. Confirm that the 4-SMD no-lead package dimensions align with your PCB footprint. Check for any specific reflow soldering profile recommendations provided in the official datasheet to prevent thermal damage during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS compatibility. Consider the ±50 ppm stability for applications where moderate precision is sufficient. The enable/disable feature makes it suitable for battery-powered designs. Evaluate the physical size constraints against the 4-SMD package dimensions. Compare alternative frequencies if the exact 3.2768 MHz rate does not match the system clock needs.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which focuses on small-form-factor timing solutions. The series typically offers various frequencies and voltage options. Mercury Electronic is a Taiwan-based manufacturer specializing in frequency control products since 1973. This specific model represents a standard XO variant designed for general-purpose timing applications in modern compact electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 3.2768 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and enable/disable functionality. Cross-reference electrical specifications such as current consumption and stability. Ensure the replacement part supports the same operating temperature range.