QT325S-24.576MAGE-T

Overview

The QT325S-24.576MAGE-T is a surface-mount crystal oscillator manufactured by QST, designed for precision timing applications. It operates at a fundamental frequency of 24.576 MHz with a frequency tolerance of ±30 ppm and stability of ±50 ppm. The component features a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. It utilizes a 4-SMD, no-lead package with dimensions of 3.2 mm x 2.5 mm and a maximum height of 0.7 mm. The device supports base harmonic operation and is rated for a temperature range of -40°C to +85°C.

Feature Summary

• Compact 3.2x2.5 mm SMD footprint suitable for space-constrained designs
• High frequency stability of ±50 ppm across the operating temperature range
• Low equivalent series resistance of 50 Ohms for efficient circuit integration

Applications

• Precision clock generation in microcontroller systems
• Communication module timing references
• Embedded control circuits requiring stable frequency sources

Procurement Notes

Verify the specific suffix 'MAGE' against the manufacturer's official datasheet to confirm exact electrical parameters, as suffixes often denote variations in tolerance or packaging. Ensure compatibility with standard reflow soldering profiles for 4-SMD no-lead packages. Cross-reference the part number with authorized distributors to obtain current technical documentation and avoid counterfeit components.

Selection Notes

Select this component when a 24.576 MHz reference is required with ±30 ppm initial tolerance. The 12 pF load capacitance must match the oscillator circuit design. Consider the 50 Ohm ESR for drive level limitations. The wide temperature range supports industrial environments. Verify that the 3.2x2.5 mm package fits the PCB layout constraints.

Part Context

This part belongs to the QT325S series of surface-mount crystals from QST. The series offers various frequencies and package sizes, typically ranging from 3.2x2.5 mm to larger formats. These components are general-purpose timing devices used in consumer electronics, industrial controls, and telecommunications equipment where reliable frequency generation is critical.

Replacement Considerations

Direct substitutes may include other manufacturers' 24.576 MHz crystals with identical 12 pF load capacitance and 50 Ohm ESR in a 3.2x2.5 mm SMD package. Verify pinout compatibility and thermal characteristics before substitution. Generic equivalents should meet the same ±30 ppm tolerance and -40°C to +85°C temperature rating.