18QHTF21-40.775-OE

Oscillators Overview

The 18QHTF21-40.775-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.775 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
• Enable/Disable control functionality
• Compact 4-SMD No Lead package

Oscillators Applications

• General electronic timing circuits
• Embedded systems clock sources
• Consumer electronics devices

Oscillators Procurement Notes

Verify the specific operating voltage and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply matches your system's power rails. Ensure the 4-SMD footprint aligns with your PCB layout constraints. Check for any specific environmental ratings if the application involves extreme temperatures.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the small form factor of the 4-SMD package for space-constrained boards. Verify frequency stability needs against standard oscillator specifications.

Oscillators Part Context

This part belongs to the Mercury Electronics XO (Standard) series, which provides reliable quartz-based timing solutions. The manufacturer has a history of producing frequency control products since 1973. This specific model represents their capability in low-voltage SMD oscillators for modern digital applications.

Oscillators Replacement Considerations

Direct substitutes must match the 40.775 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical characteristics carefully. Cross-reference with other manufacturers offering similar low-profile oscillators with enable pins.