QT325G-41.600MAHQ-T

Overview

The QT325G-41.600MAHQ-T is a surface-mount glass-sealed quartz crystal resonator manufactured by QST. It operates at a fundamental frequency of 41.6 MHz with a load capacitance of 10 pF and a frequency tolerance of ±30 ppm. The component features a compact 4-SMD, no-lead package with body dimensions of 3.2 x 2.5 x 0.8 mm. Designed for commercial applications, it maintains stability across a temperature range of -40°C to +85°C.

Feature Summary

• Glass-sealed construction ensures long-term frequency stability and environmental protection.
• Compact 3.2x2.5mm SMD footprint optimizes space efficiency in dense circuit boards.
• High reliability design suitable for demanding commercial electronic applications.

Applications

• Clock generation for microprocessors and digital logic circuits
• Timing references in communication modules
• Frequency control in consumer electronics devices

Procurement Notes

Verify the specific suffix HQ against official QST documentation to confirm exact load capacitance and tolerance specifications. Ensure compatibility with reflow soldering profiles defined in the manufacturer's datasheet. Confirm that the 10pF load capacitance matches the oscillator circuit requirements. Validate that the operating temperature range meets the system's environmental constraints before finalizing procurement.

Selection Notes

Select this component when a precise 41.6 MHz reference is required within a constrained PCB area. The 10pF load capacitance must align with the host oscillator's design parameters. Consider the ±30 ppm tolerance for timing accuracy needs. The glass-seal technology offers superior stability compared to standard epoxy-sealed alternatives in varying thermal conditions.

Part Context

This part belongs to the QT325G series of miniature quartz crystals from QST. The series utilizes a glass-seal manufacturing process to enhance durability and frequency consistency. The 3.2x2.5mm form factor represents a standard size for high-frequency surface-mount applications, balancing performance with board space limitations.

Replacement Considerations

Direct substitutes include other 41.6 MHz crystals with identical 3.2x2.5mm dimensions and 10pF load capacitance. Verify equivalent frequency tolerance and temperature stability ranges. Ensure the replacement maintains the same package type and pin configuration for seamless integration without PCB redesign.