18QHTF21-40.971-OE

Oscillators Overview

The 18QHTF21-40.971-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.971 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an active enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital circuits
• Includes active enable and disable control functionality for power management
• Utilizes a leadless surface-mount package for automated assembly compatibility

Oscillators Applications

• Digital signal processing timing references
• Communication interface clock generation
• Microcontroller system clocks

Oscillators Procurement Notes

Verify the specific operating voltage requirement of 1.8V against the target circuit design to ensure compatibility. Confirm that the LVCMOS output levels align with the receiving logic family thresholds. Ensure the PCB footprint matches the 2.0x1.6 mm SMD no-lead package specifications to prevent mounting issues during assembly.

Oscillators Selection Notes

Select this component when a fixed frequency of 40.971 MHz is required with low-voltage operation. Consider the enable/disable feature if power conservation or dynamic clock gating is necessary. Evaluate the small form factor suitability for space-constrained designs compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan producing quartz crystals and oscillators. This series typically offers standard XO options with various frequencies and voltage levels.

Oscillators Replacement Considerations

Direct substitutes include other 40.971 MHz LVCMOS oscillators in 2.0x1.6 mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters before substitution.