18QHTF21-2.22222-OE

Oscillators Overview

The 18QHTF21-2.22222-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 2.22222 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount applications. The component supports an operating temperature range of -40°C to 85°C and maintains a frequency stability of ±50ppm.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Compact 4-SMD no-lead package

Oscillators Applications

• General-purpose digital timing circuits
• Embedded system clock generation
• Consumer electronics timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your power management architecture. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Oscillators Selection Notes

Select this component when a precise 2.22222 MHz reference is required in space-constrained designs. The LVCMOS output is compatible with standard CMOS logic families. Consider the ±50ppm stability for applications not requiring ultra-high precision. The wide temperature range ensures reliability in varied environmental conditions compared to commercial-grade alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies with consistent electrical characteristics. It represents a standard solution for timing needs where moderate stability suffices. The manufacturer leverages decades of quartz expertise to provide reliable frequency control products.

Oscillators Replacement Considerations

Direct substitutes must match the 2.22222 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pin compatibility and thermal specifications. Cross-reference with other manufacturers offering similar SMD oscillators if availability is an issue.