18QHTF21-18.75875-OE

Oscillators Overview

The 18QHTF21-18.75875-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 18.75875 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes 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 interface for digital compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• General electronic projects requiring precise timing
• Digital signal processing systems
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD package footprint matches your PCB layout constraints to avoid assembly issues.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific frequency near 18.75 MHz. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the LVCMOS output swing if interfacing with high-speed digital logic.

Oscillators Part Context

This part belongs to the QHTF series from Mercury Electronic, which offers various hermetic ceramic leadless SMD packages. The series covers a frequency range from 1.0 MHz to 200 MHz across different supply voltages. Mercury Electronics is a pioneer in the quartz crystal industry in Taiwan with decades of manufacturing experience.

Oscillators Replacement Considerations

Check for direct substitutes within the same QHTF family with compatible frequencies and package types. Verify pinout compatibility and electrical specifications such as supply voltage and output logic levels before substituting.