18QHTF21-25.000-PD

Oscillators Overview

The 18QHTF21-25.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.0 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby power-down mode to reduce energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Provides LVCMOS output signal compatibility

Oscillators Applications

• Digital clock generation in embedded systems
• Timing reference for microcontroller units
• Synchronization in communication interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints. Cross-reference the datasheet for operating temperature range limitations to guarantee reliability under intended environmental conditions.

Oscillators Selection Notes

Select this component when a 25.0 MHz timing source is required with low power consumption capabilities. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the physical size of the 2.0x1.6mm package for space-constrained designs. Verify compatibility with LVCMOS logic levels used in the downstream processing components to ensure signal integrity.

Oscillators Part Context

This part belongs to the QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline package. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants in the same family.

Oscillators Replacement Considerations

Direct substitutes must match the 25.0 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as jitter and stability before substitution.