QT325G-12.288MAHE-T

Overview

The QT325G-12.288MAHE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 12.288 MHz with a load capacitance of 12 pF. The component features a 4-SMD, no-lead package with dimensions of 3.2 mm x 2.5 mm. Frequency tolerance is specified as ±30 ppm at 25°C and ±30 ppm over the operating temperature range of -40°C to +85°C. This device provides stable timing signals for electronic circuits requiring precise clock synchronization.

Feature Summary

• Compact 3.2x2.5 mm surface-mount footprint suitable for space-constrained designs
• High stability frequency performance across extended industrial temperature ranges
• Lead-free SMD construction compatible with automated assembly processes

Applications

• Clock generation for microprocessors and microcontrollers
• Timing references in communication modules
• Synchronization circuits in consumer electronics

Procurement Notes

Verify the specific suffix 'HE' against official QST documentation to confirm exact tolerance and temperature specifications. Ensure compatibility with PCB footprints matching the 4-SMD no-lead package dimensions. Confirm RoHS compliance status through current manufacturer datasheets before integration into production environments.

Selection Notes

Select this component when a 12.288 MHz reference is required in a compact SMD form factor. Consider the ±30 ppm tolerance limits relative to system clock accuracy requirements. Evaluate the -40°C to +85°C operating range against environmental conditions. Compare physical dimensions against available board space constraints.

Part Context

This part belongs to the QT325G series of quartz crystals from QST. The series offers various frequency options and tolerance grades within standardized small outline packages. These components are engineered for general-purpose timing applications where size and reliability are prioritized over ultra-high precision specifications.

Replacement Considerations

Direct substitutes include other manufacturers offering 12.288 MHz crystals in 3225 SMD packages with similar electrical parameters. Verify pinout compatibility and mechanical height restrictions. Cross-reference frequency stability and load capacitance requirements to ensure functional equivalence.