QT325G-22.5792MAHV-T

Overview

The QT325G-22.5792MAHV-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 22.5792 MHz with a frequency stability and tolerance of ±30ppm. The component features an 8pF load capacitance and a maximum equivalent series resistance (ESR) of 60 Ohms. It utilizes a glass-sealed package with dimensions of 3.2 x 2.5 x 0.8 mm in a 4-SMD, no-lead configuration. The device supports an operating temperature range of -40°C to +85°C, ensuring reliable performance in various electronic circuits requiring precise timing.

Feature Summary

• Glass-sealed construction for enhanced environmental stability
• Compact 4-SMD no-lead surface-mount design
• High frequency stability within specified temperature ranges

Applications

• Embedded communication systems
• Microcontroller clock sources
• Precision timing circuits

Procurement Notes

Verify the specific suffix 'MAHV' against official QST documentation to confirm the exact frequency tolerance and temperature range specifications. Ensure compatibility with the target circuit's load capacitance requirements, specifically the 8pF specification. Confirm that the 60 Ohm ESR limit aligns with the oscillator circuit design parameters before finalizing procurement decisions.

Selection Notes

Select this component when a compact, glass-sealed crystal is required for 22.5792 MHz applications. The ±30ppm stability suits general-purpose timing needs rather than high-precision references. Consider the 4-SMD footprint for space-constrained PCB layouts. Verify that the operating temperature range meets the environmental conditions of the end application.

Part Context

This part belongs to the QT325G series of quartz crystals from QST. The series offers various frequency options and stability grades, indicated by suffixes such as A, D, E, T, or G. The MAHV suffix denotes specific electrical characteristics including the 22.5792 MHz frequency, 8pF load capacitance, and ±30ppm stability. These components are standard solutions for embedded timing applications.

Replacement Considerations

Direct substitutes must match the 22.5792 MHz frequency, 8pF load capacitance, and 4-SMD no-lead package. Check datasheets for equivalent ESR values and temperature stability ratings. Cross-reference with other manufacturers offering glass-sealed SMD crystals in the 3.2x2.5mm form factor.