QT325S-26.000MEEY-T

Overview

The QT325S-26.000MEEY-T is a quartz crystal unit manufactured by QST, designed for precision timing applications. It operates at a fundamental frequency of 26.000 MHz. The component utilizes a surface-mount technology (SMT) package with dimensions of 3.2mm x 2.5mm, suitable for automated assembly processes. This specific model features an EIAJ standard footprint and includes integrated load capacitors within the package structure to simplify circuit design. The device is engineered to provide stable oscillation characteristics with low phase noise, ensuring reliable performance in digital communication systems and microcontroller clock sources.

Feature Summary

• Integrated load capacitors reduce external component count
• Compact SMT package facilitates high-density PCB layout
• Fundamental mode operation ensures stable frequency stability

Applications

• Mobile phone baseband processors
• Wireless communication modules
• Microcontroller clock generation

Procurement Notes

Verify the complete part number including suffixes against official QST documentation to ensure correct package type and tolerance specifications. Confirm that the requested variant matches the required operating temperature range and load capacitance values specified in the datasheet. Cross-reference the manufacturing date code and lot traceability requirements with your supply chain standards before finalizing orders.

Selection Notes

Select this component when space constraints require a small form factor combined with built-in load capacitance. Evaluate the required frequency tolerance and stability specifications against the application's timing requirements. Ensure compatibility with the target oscillator circuit's drive level limitations and equivalent series resistance constraints defined in the electrical characteristics table.

Part Context

This part belongs to QST's QT325S series of miniature quartz crystals. The series is characterized by its small outline package and integrated capacitor design, targeting portable electronic devices where board real estate is limited. It serves as a direct replacement for larger through-hole or standard SMD crystals in designs requiring simplified BOM management.

Replacement Considerations

Check QST's official substitution list for compatible alternatives with identical pinout and electrical parameters. Verify that any substitute maintains the same integrated capacitor configuration and package dimensions to ensure mechanical fit.