QT325G-32.000MAHE-T

Overview

The QT325G-32.000MAHE-T is a 32 MHz quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates in the fundamental mode and features a 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm. The component exhibits a frequency stability of ±30ppm at 25°C and maintains ±30ppm across an operating temperature range of -20°C to +70°C. Key electrical parameters include a load capacitance of 12pF and an equivalent series resistance (ESR) of 60 Ohms. The device complies with RoHS3 standards and has a moisture sensitivity level of 1.

Feature Summary

• Surface-mount design utilizing a compact 4-SMD no-lead package structure
• Fundamental mode operation ensuring stable frequency generation
• Glass seal construction providing environmental robustness

Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for microcontroller systems
• Frequency control in communication modules requiring 32 MHz stability

Procurement Notes

Verify the specific suffix 'HE' against official QST documentation to confirm the exact temperature range and tolerance specifications, as ordering codes directly impact functional parameters. Ensure compatibility with standard reflow soldering profiles for 4-SMD packages. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and lead times prior to finalizing procurement plans.

Selection Notes

Select this component when a 32 MHz fundamental frequency is required within a 3.2x2.5mm footprint. Consider the ±30ppm stability specification relative to system timing requirements. Evaluate the 12pF load capacitance against the oscillator circuit design. Confirm that the -20°C to +70°C operating range meets the application's thermal environment constraints before implementation.

Part Context

This part belongs to the QT325G series of quartz crystals from QST, characterized by small form factor surface-mount packages. The series offers various frequencies and stability grades, with the 'G' suffix typically indicating ±50ppm over extended ranges, though specific suffixes like 'HE' define precise operational limits. These components are widely used in consumer electronics and industrial equipment requiring reliable timing references.

Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the QT325G-32.000MAAE-T and QT325G-32.000MDDE-T from QST. Verify that alternative parts match the 12pF load capacitance and 60 Ohm ESR specifications. Ensure the replacement maintains the same 4-SMD package dimensions and mounting style to fit existing PCB layouts without mechanical modification.