QT325S-16.6670MAAE-T

Overview

The QT325S-16.6670MAAE-T is a quartz crystal resonator manufactured by QST Products, LLC. It operates at a fundamental frequency of 16.667 MHz with a load capacitance of 12 pF. The component features a surface-mount package measuring 3.2 mm x 2.5 mm x 0.7 mm in a 4-SMD, No Lead configuration. Frequency stability is rated at ±30 ppm across the operating temperature range of -20°C to +70°C, with an initial tolerance of ±30 ppm at 25°C.

Feature Summary

• Surface-mount design for automated assembly processes
• Quartz resonator technology for stable oscillation
• Compact footprint suitable for space-constrained PCB layouts

Applications

• Microcontroller clock sources
• Communication module timing circuits
• Consumer electronics oscillator applications

Procurement Notes

Verify the specific suffix 'AAE' against official QST documentation to confirm the exact stability and temperature range specifications. Ensure the load capacitance requirement matches the circuit design. Confirm availability through authorized distributors as stock levels fluctuate. Request datasheets directly from the manufacturer for precise electrical characteristics.

Selection Notes

Select this component when a 16.667 MHz reference is required in a compact SMD form factor. Consider the ±30 ppm stability rating against system timing requirements. Evaluate the 12 pF load capacitance compatibility with the host oscillator circuit. Compare thermal performance needs against the -20°C to +70°C operational range.

Part Context

This part belongs to the QT325S series of surface-mount crystals from QST. The series offers various frequencies and stability grades. The 3.2x2.5mm package size is common for general-purpose timing applications. Other variants in the series may differ in frequency, tolerance, or temperature range.

Replacement Considerations

Direct substitutes must match the 16.667 MHz frequency, 12 pF load capacitance, and 3.2x2.5mm package dimensions. Verify equivalent stability ratings of ±30 ppm. Check for compatible mounting pads and soldering profiles. Cross-reference with other manufacturers offering similar SMD crystal packages.