18QHTF21-12.352-OE

Overview

The 18QHTF21-12.352-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.352 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. 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 for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock generation
• Digital signal processing timing
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling. The enable/disable feature allows for power management in battery-operated devices. Consider the small form factor for space-constrained designs where standard leaded packages are unsuitable.

Part Context

This part belongs to the Mercury Electronics XO series, which offers various frequencies within the same package family. The suffix indicates the specific frequency setting. Similar models exist for different frequencies such as 6.000 MHz or 44.960 MHz, sharing identical electrical characteristics and physical dimensions.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants from Mercury Electronics with matching frequencies. Cross-brand replacements require verification of pinout compatibility, voltage levels, and output drive strength to ensure functional equivalence.