18QHTF21-4.4544-OE

Oscillators Overview

The 18QHTF21-4.4544-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.4544 MHz and utilizes an LVCMOS output interface. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features enable and disable control capabilities to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Low voltage operation at 1.8V supply
• Enable/Disable control functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose timing circuits
• Embedded systems clock sources
• Consumer electronics timing references
• Industrial control system oscillators

Oscillators Procurement Notes

Verify the specific suffix (OE) against the manufacturer's current datasheet to confirm pinout configuration and electrical tolerances. Ensure the ordering part number matches the required frequency tolerance and stability specifications for the target application environment. Cross-reference with official Mercury Electronic documentation to validate package dimensions and reflow soldering profiles.

Oscillators Selection Notes

Select this component when a low-profile, 1.8V compatible oscillator is required for space-constrained designs. Consider the LVCMOS output swing levels relative to the receiving logic family voltage thresholds. Evaluate the thermal performance and frequency stability requirements against the standard XO specifications provided in the official data sheet before finalizing the design.

Oscillators Part Context

This model belongs to the 18QHTF21 series from Mercury Electronic Ind. Co. Ltd, a supplier specializing in quartz crystals and oscillators. The series offers various frequency options within a standardized small footprint. Mercury has a long history in the Taiwan frequency-control industry, providing components for diverse electronic applications requiring precise timing signals.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies but identical packages, such as 18QHTF21-4.096-OE or 18QHTF21-4.9152-OE, provided the frequency difference is acceptable. Verify that any replacement maintains the same 1.8V supply requirement and LVCMOS output characteristics.