18QHTF21-44.9454-OE

Oscillators Overview

The 18QHTF21-44.9454-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 44.9454 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable functionality for power management
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application's specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling levels. The enable/disable feature makes it suitable for systems requiring dynamic power control. Consider the small form factor of the 4-SMD package for space-constrained designs where traditional through-hole or larger surface-mount oscillators cannot fit.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd has been manufacturing frequency control products since 1973 and is recognized as a pioneer in the quartz crystal industry in Taiwan. This company brings decades of experience in producing reliable timing components, including various types of oscillators and crystals for diverse electronic applications.

Oscillators Replacement Considerations

Direct substitutes must match the 44.9454 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available from alternative manufacturers.