18QHTF21-19.4444-OE

Oscillators Overview

The 18QHTF21-19.4444-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.4444 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital circuit compatibility
• Features integrated enable/disable control functionality
• Utilizes low-profile 4-SMD no-lead surface mount packaging

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a stable 19.4444 MHz reference is required for LVCMOS-compatible digital interfaces. Consider the 1.8V operating voltage constraint and the need for active enable/disable control. The small form factor makes it appropriate for space-constrained designs where standard through-hole oscillators are not feasible.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The manufacturer has decades of experience in crystal manufacturing, positioning this part within a lineage of reliable timing components designed for industrial and commercial electronic applications requiring consistent frequency stability.

Oscillators Replacement Considerations

Direct substitutes must match the 19.4444 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter specifications to ensure seamless integration without circuit redesign.