18QHTF21-12.223-OE

Overview

The 18QHTF21-12.223-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.223 MHz and utilizes LVCMOS output logic levels. The component requires a 1.8V supply voltage for operation. It includes an enable/disable control function to manage power consumption. The device is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output interface
• Enable/disable functionality
• 1.8V operating voltage

Applications

• Low-voltage CMOS applications
• Digital signal processing systems
• Communication equipment timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the specified operating range. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions provided in the official datasheet to avoid assembly issues.

Selection Notes

Select this component when a precise 12.223 MHz clock signal is required for low-voltage digital circuits. The enable pin allows for dynamic power management in battery-operated devices. Consider the thermal characteristics and stability requirements of the application environment to ensure reliable long-term performance.

Part Context

This part belongs to Mercury Electronics' series of surface mount crystal oscillators. The company specializes in frequency control products including quartz crystals and filters. This specific model represents a standard XO variant designed for integration into modern electronic systems requiring compact timing solutions.

Replacement Considerations

Direct substitutes must match the 12.223 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pin compatibility and electrical specifications with alternative manufacturers before replacement.