18QHTF21-25.00003-PD

Oscillators Overview

The 18QHTF21-25.00003-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down standby function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Includes a power-down standby mode to reduce operational current consumption
• Utilizes a leadless surface-mount package for automated assembly integration

Oscillators Applications

• General clock signal generation for embedded systems
• Timing reference for microcontroller units
• Synchronization sources for digital communication interfaces

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure the correct frequency tolerance and load capacitance requirements are met. Confirm that the 1.8V supply voltage aligns with the target circuit design before procurement. Ensure the leadless package footprint matches the PCB layout specifications to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a low-profile, leadless oscillator is required for space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the LVCMOS output type if direct interfacing with standard logic gates is necessary without additional buffering. Verify thermal management requirements for the small form factor.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on miniature surface-mount oscillators. The series typically offers various frequencies within a 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from standard continuous-operation variants within the same physical footprint family.

Oscillators Replacement Considerations

Direct substitutes must match the 25MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package dimensions. Cross-reference with other manufacturers offering identical pinout and electrical characteristics to ensure functional equivalence.