18QHTF21-18.516554-OE

Oscillators Overview

The 18QHTF21-18.516554-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.516554 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage operation at 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD surface-mount package, suitable for space-constrained electronic designs requiring precise timing signals.

Oscillators Feature Summary

• Provides stable clock signals via LVCMOS interface
• Supports active enable and disable control states
• Designed for low-voltage 1.8V power supply applications

Oscillators Applications

• General purpose digital circuit timing
• Embedded system clock generation
• Communication module synchronization

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 4-SMD footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics to validate electrical characteristics for your application environment.

Oscillators Selection Notes

Select this component when a precise 18.516554 MHz reference is required in a low-power environment. The LVCMOS output ensures compatibility with standard digital logic families. The enable pin allows for power management strategies by disabling the oscillator when not in use. Consider the thermal performance and stability requirements of the operating environment during selection.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within the kHz to MHz range. Mercury Electronics has a long history in quartz crystal manufacturing, providing frequency control products including crystals and oscillators. This specific model represents their standard XO offering in a small form factor.

Oscillators Replacement Considerations

Direct substitutes must match the 18.516554 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications such as phase noise and jitter if critical. Cross-reference with other manufacturers' 3225 or similar sized SMD oscillators ensuring identical functional parameters.