18QHTF21-4.750-OE

Oscillators Overview

The 18QHTF21-4.750-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 4.75 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage range that includes 1.8V operation 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

• LVCMOS output interface for digital compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6 mm 4-SMD no-lead package dimensions to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a low-profile, surface-mount oscillator is required for 4.75 MHz applications. Consider the LVCMOS output swing compatibility with downstream logic families. Evaluate the enable/disable feature necessity for power-sensitive designs. Compare physical size constraints against alternative packages to ensure the 2.0x1.6 mm form factor fits within the available board space.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequencies and voltage options. The suffix OE indicates specific packaging or configuration details defined by the manufacturer. These components are part of Mercury's broader portfolio of quartz-based timing solutions established since 1973.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with matching 4.75 MHz frequency and LVCMOS output. Verify pinout compatibility and package dimensions (2.0x1.6 mm) for any cross-brand replacements. Ensure equivalent electrical characteristics such as supply voltage and current consumption are maintained.