18QHTF21-18.0944-PD

Oscillators Overview

The 18QHTF21-18.0944-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.0944 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a power-down capability via a standby control pin. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital logic compatibility
• Includes standby mode for power management
• Compact surface-mount package design

Oscillators Applications

• General clock signal generation
• Digital system timing references
• Embedded controller applications

Oscillators 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 package footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Oscillators Selection Notes

Select this component when a precise 18.0944 MHz clock source is required for low-voltage digital circuits. The choice is driven by the need for a small form factor and integrated power-down functionality. Consider the LVCMOS output swing compatibility with downstream logic gates. Evaluate thermal performance within the 2.0x1.6mm package for your specific enclosure environment.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The manufacturer has a long history in quartz crystal production, providing these components as reliable frequency control solutions for consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 18.0944 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify electrical parameters such as jitter and phase noise if critical. Cross-reference with other manufacturers offering identical pinouts and specifications to ensure functional equivalence without redesign.