18QHTF21-4.90625-OE

Oscillators Overview

The 18QHTF21-4.90625-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a nominal frequency of 4.90625 MHz. It utilizes LVCMOS output logic and supports a supply voltage of 1.8V. The device features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock inputs

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable feature makes it suitable for systems needing active power management. Consider the small form factor for space-constrained designs where traditional through-hole or larger SMD oscillators cannot fit within the available board area constraints.

Oscillators Part Context

This oscillator belongs to the QHTF series from Mercury Electronics, characterized by small footprints and low voltage operation. The series typically offers standard frequencies optimized for common digital communication protocols. The -OE suffix indicates a specific configuration variant within the product line, distinguishing it from other pinout or parameter options.

Oscillators Replacement Considerations

Direct substitutes include other 4.90625 MHz LVCMOS oscillators in 4-SMD packages with 1.8V supply ratings. Verify pin compatibility and electrical parameters such as current consumption and phase noise if critical. Alternative part numbers from the same manufacturer family may offer different tolerance grades or temperature ranges.