18QHTF21-12.285543-OE

Overview

The 18QHTF21-12.285543-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.285543 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.

Feature Summary

• Supports Enable/Disable functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Housed in a 4-SMD, No Lead surface-mount package

Applications

• General electronic circuits requiring precise timing
• Embedded systems utilizing LVCMOS interfaces
• Portable devices with low-voltage power constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD, No Lead footprint matches your PCB layout dimensions. Check for any specific handling instructions regarding electrostatic discharge protection during assembly.

Selection Notes

Select this component when a stable 12.285543 MHz clock signal is required for LVCMOS-compatible digital logic. The 1.8V operating voltage makes it suitable for modern low-power applications. Consider the enable/disable feature if dynamic power saving is necessary. Verify that the small form factor fits within the spatial constraints of the target enclosure or board area.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard clock signals for various digital applications. The manufacturer has produced frequency control products since 1973. This specific model represents a quartz-based solution offering reliable performance in a compact surface-mount package suitable for automated manufacturing processes.

Replacement Considerations

Direct substitutes include other models from the same series such as 18QHTF21-13.1313-OE or 18QHTF21-50.256-OE, provided the frequency difference is acceptable for the application. Ensure any replacement maintains the LVCMOS output type and 1.8V supply requirement.