QT325S-16.000MEIJ-T

Overview

The QT325S-16.000MEIJ-T is a quartz crystal resonator manufactured by QST, operating at a nominal frequency of 16 MHz. It features a load capacitance of 18 pF and exhibits a frequency tolerance of ±10 ppm and stability of ±20 ppm at 25°C. The component utilizes a 4-SMD, No Lead package with dimensions of 3.2 x 2.5 mm. It is designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Surface-mount quartz crystal resonator with seam seal construction
• High frequency stability suitable for precision timing circuits
• Compact 4-SMD no-lead footprint for automated assembly

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuit oscillators

Procurement Notes

Verify the specific suffix MEIJ-T against official QST documentation to confirm the exact tolerance and stability ratings. Ensure the ordering part number matches the required frequency tolerance and temperature stability specifications before procurement. Cross-reference the manufacturer datasheet to validate package dimensions and electrical characteristics.

Selection Notes

Select this component when a 16 MHz reference with ±10 ppm tolerance and 18 pF load capacitance is required. Consider the 3.2x2.5 mm SMD footprint for space-constrained designs. Verify that the operational temperature range aligns with the system requirements, as stability varies with temperature coefficients defined in the datasheet.

Part Context

This component belongs to the QT325S series of quartz crystals from QST. The series offers various frequency options and tolerance grades within a standardized small outline package. The QT325S designation indicates a specific form factor optimized for high-volume surface-mount manufacturing processes.

Replacement Considerations

Direct substitutes include other manufacturers' 16 MHz crystals in 3225 packages with 18 pF load capacitance. Verify equivalent frequency tolerance (±10 ppm) and stability ratings. Ensure the replacement part supports the same soldering profile and thermal characteristics.