QT325G-14.7456MAAV-T

Overview

The QT325G-14.7456MAAV-T is a surface-mount crystal oscillator manufactured by QST. It operates at a fundamental frequency of 14.7456 MHz and utilizes a glass-sealed package with dimensions of 3.2 x 2.5 x 0.8 mm. The component features a load capacitance of 8 pF and maintains a frequency tolerance of ±30 ppm across the operating temperature range of -20°C to +70°C.

Feature Summary

• Glass-sealed construction for environmental stability
• Compact surface-mount form factor
• Fundamental mode operation

Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Procurement Notes

Verify the specific suffix code against official QST documentation to confirm exact tolerance and temperature range specifications. Ensure compatibility with reflow soldering profiles defined in the manufacturer datasheet. Confirm that the 8 pF load capacitance matches the target circuit design requirements before procurement.

Selection Notes

Select this component when a compact, glass-sealed crystal is required for 14.7456 MHz applications. The ±30 ppm tolerance suits general-purpose timing needs within the specified industrial temperature range. Consider the 3.2x2.5mm footprint for space-constrained PCB layouts requiring SMD mounting.

Part Context

This part belongs to the QT325G series of surface-mount crystals from QST. The series offers various tolerance options indicated by suffix letters, such as A for ±30 ppm. These components are designed for high reliability in consumer and industrial electronics using standard SMD assembly processes.

Replacement Considerations

Direct substitutes include other QT325G variants with identical frequency but different tolerances, such as QT325G-14.7456MAHJ-T (±30 ppm, -40°C to +85°C) or QT325G-14.7456MEEQ-T (±10 ppm). Verify load capacitance and drive level specifications when cross-referencing.