QT325S-24.000METC-T

Overview

The QT325S-24.000METC-T is a quartz crystal resonator manufactured by QST, operating at a fundamental frequency of 24 MHz. It features a seam seal package with dimensions of 3.2 mm x 2.5 mm and a height of 0.7 mm. The component exhibits a frequency tolerance and stability of ±10 ppm at 25°C. It utilizes a load capacitance of 9 pF and has an equivalent series resistance (ESR) of 50 Ohms. The device employs a four-terminal surface-mount design without leads.

Feature Summary

• Seam seal construction for environmental protection
• Four-terminal surface-mount configuration
• High frequency stability within specified temperature range

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific suffix METC-T against official QST documentation to confirm the exact electrical parameters, particularly the 9 pF load capacitance and 50 Ohm ESR. Ensure the procurement channel provides valid traceability for this specific seam seal variant. Cross-reference the manufacturer part number to avoid confusion with similar QT325S models that may have different stability or capacitance ratings.

Selection Notes

Select this component when a 24 MHz reference with ±10 ppm stability is required in a compact 3.2x2.5 mm footprint. The 9 pF load capacitance must match the oscillator circuit design. Consider the 50 Ohm ESR for drive level limitations. This model is suitable for applications requiring robust seam seal packaging compared to standard ceramic packages.

Part Context

This part belongs to the QT325S series of quartz crystals from QST. The series offers various frequencies and stability grades within the same 3.2x2.5 mm seam seal form factor. Different suffixes indicate variations in tolerance, load capacitance, and driving power. This specific model targets general-purpose timing applications requiring moderate precision.

Replacement Considerations

Direct substitutes include other manufacturers' 24 MHz crystals in 3.2x2.5 mm seam seal packages with matching 9 pF load capacitance and ±10 ppm stability. Verify ESR compatibility. Generic replacements must maintain the four-terminal SMD interface.