QT325G-12.288MEIV-T

Overview

The QT325G-12.288MEIV-T is a quartz crystal oscillator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 12.288 MHz with a load capacitance of 8 pF. The component features a tight initial frequency tolerance of ±10 ppm and a total frequency stability of ±20 ppm over the specified operating temperature range. This device utilizes a compact 3.2x2.5 mm SMD package, providing precise timing solutions for electronic circuits requiring high accuracy and reliability.

Feature Summary

• High precision frequency control with ±10 ppm initial tolerance
• Compact 3.2x2.5 mm surface-mount footprint
• Stable operation across defined industrial temperature ranges

Applications

• Precision timing circuits in consumer electronics
• Microcontroller clock sources
• Communication module synchronization

Procurement Notes

Verify the specific suffix 'MEIV' to ensure compatibility with required tolerance levels. Confirm that the 8 pF load capacitance matches the host circuit design. Check for RoHS compliance status if environmental regulations apply. Ensure the operating temperature range meets system requirements before finalizing procurement decisions.

Selection Notes

Select this component when a 12.288 MHz reference with ±10 ppm accuracy is necessary. Consider the 3.2x2.5 mm package size for space-constrained PCB layouts. Evaluate the ±20 ppm stability against long-term drift requirements. Compare against alternative packages if higher thermal robustness is needed.

Part Context

This part belongs to the QT325G series of quartz crystals from QST. The series focuses on small-form-factor timing components for modern electronics. The MEIV suffix typically denotes specific performance characteristics regarding tolerance and packaging. It serves as a critical passive element for generating stable clock signals in digital systems.

Replacement Considerations

Direct substitutes must match the 12.288 MHz frequency, 8 pF load capacitance, and ±10 ppm tolerance. Verify package dimensions (3.2x2.5 mm) for mechanical fit. Ensure equivalent frequency stability ratings are maintained. Cross-reference manufacturer datasheets for pinout and electrical equivalence.