QT325G-25.000MAHE-T

Overview

The QT325G-25.000MAHE-T is a surface-mount quartz crystal oscillator manufactured by QST, operating at a nominal frequency of 25 MHz. It features a four-terminal SMD package with no lead configuration. The component exhibits a frequency stability of ±30 ppm over the temperature range of -20°C to +70°C. It has a load capacitance of 12 pF and an equivalent series resistance (ESR) of 60 Ohms.

Feature Summary

• Utilizes AT-cut quartz blank design for precise frequency control
• Provides stable oscillation within specified temperature ranges
• Designed for surface-mount assembly processes

Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for microcontroller systems
• Communication interface synchronization modules

Procurement Notes

Verify the specific suffix code against official QST documentation to confirm exact temperature stability ratings and packaging specifications. Ensure compatibility with standard reflow soldering profiles for leadless SMD components. Cross-reference manufacturer datasheets for handling instructions regarding electrostatic discharge sensitivity during storage and assembly operations.

Selection Notes

Select this component when a 25 MHz timing source with ±30 ppm stability is required for industrial or commercial environments. Consider the 4-SMD no-lead package for automated placement efficiency. Evaluate the 12 pF load capacitance requirement against the host circuit's input capacitance to ensure accurate frequency operation without external tuning adjustments.

Part Context

This part belongs to the QT325G family of quartz crystals from QST. The family includes various frequency options such as 26 MHz and 36.480 MHz, all sharing similar physical dimensions and mounting characteristics. These components are designed to replace traditional through-hole crystals in modern compact electronic designs requiring reliable surface-mount solutions.

Replacement Considerations

Compatible substitutes include other 25 MHz crystals with identical 4-SMD no-lead footprints and matching electrical parameters. Verify that alternative parts meet the same ±30 ppm stability requirement and 12 pF load capacitance specification to maintain system timing integrity.