18QHTF21-25.005625-OE

Oscillators Overview

The 18QHTF21-25.005625-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.005625 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Provides stable clock signal generation at 25.005625 MHz
• Supports low-voltage operation with 1.8V supply
• Features LVCMOS output logic for digital interface compatibility
• Includes enable/disable functionality for power management

Oscillators Applications

• General-purpose digital circuit timing
• Embedded system clock sources
• Communication equipment synchronization
• Consumer electronics timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin configuration matches your control logic. Check the 4-SMD No Lead package dimensions for PCB layout compatibility. Validate operating temperature range suitability for your intended environment.

Oscillators Selection Notes

Select this component when a precise 25.005625 MHz reference is required with low-power consumption. Consider the LVCMOS output level for direct interfacing with standard digital logic families. Evaluate the enable/disable feature if dynamic power saving is necessary. Compare the 1.8V requirement against other available voltage options in the series. Assess the physical size constraints of the 4-SMD No Lead package relative to your board space.

Oscillators Part Context

This part belongs to Mercury Electronics' standard XO series, characterized by SMD packaging and LVCMOS outputs. The model number indicates a 25.005625 MHz frequency variant within the 18QHTF21 family. Similar parts in the series include different frequencies like 50.256 MHz or 18.5625 MHz, often sharing the same package and voltage characteristics but varying in output frequency.

Oscillators Replacement Considerations

Direct substitutes may include other 25.005625 MHz LVCMOS oscillators from Mercury Electronics with identical 1.8V operation and 4-SMD No Lead packaging. Verify electrical parameters such as frequency stability and phase noise against original specifications. Ensure mechanical footprint compatibility for seamless replacement without PCB redesign.