18QHTF21-18.900-OE

Oscillators Overview

The 18QHTF21-18.900-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.9 MHz and utilizes an LVCMOS output interface. The device supports a supply voltage of 1.8V and features 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, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital logic compatibility
• Includes hardware enable/disable control functionality
• Utilizes low-profile 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout to avoid assembly issues. Check for RoHS compliance status if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a 18.9 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained designs. Verify that the enable pin functionality meets your power sequencing needs compared to always-on alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. These components are designed for high-volume production environments where consistent timing performance and small size are critical for modern electronic devices.

Oscillators Replacement Considerations

Direct substitutes include other 18.9 MHz LVCMOS oscillators in 4-SMD 2.0x1.6 packages from compatible manufacturers. Ensure electrical parameters such as voltage and output type match exactly. Cross-reference pinouts to verify compatibility during replacement.