18QHTF21-25.1658-OE

Oscillators Overview

The 18QHTF21-25.1658-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 25.1658 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable function for power management control. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It supports an operating temperature range of -40°C to 85°C and offers frequency stability of ±50ppm.

Oscillators Feature Summary

• LVCMOS output logic compatible with standard digital interfaces
• Integrated enable/disable functionality for power optimization
• Compact surface-mount package suitable for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard logic levels
• Embedded systems operating within industrial temperature ranges

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's power rails. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions to prevent assembly issues. Cross-reference the manufacturer's latest datasheet for any updates on pin configurations or recommended soldering profiles.

Oscillators Selection Notes

Select this component when a low-profile, 1.8V LVCMOS oscillator is required for 25.1658 MHz applications. Consider the ±50ppm stability if tight jitter performance is not critical. Evaluate the enable/disable feature if dynamic power saving is necessary. Compare against alternative packages if board space allows for larger footprints with potentially different electrical characteristics.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor oscillators. The series typically includes various frequencies and voltage options. The 'OE' suffix often denotes specific packaging or testing variations. This model fits into the broader category of surface-mount crystal oscillators used in consumer electronics and industrial controls.

Oscillators Replacement Considerations

Direct replacements must match the 25.1658 MHz frequency, 1.8V supply, and LVCMOS output. Verify pin compatibility for the 4-SMD No Lead package. Check if the substitute supports the same enable/disable functionality. Ensure the replacement meets the -40°C to 85°C operating temperature range.