QT325S-24.576MAHE-T

Overview

The QT325S-24.576MAHE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 24.576 MHz with a load capacitance of 12 pF and an equivalent series resistance of 50 Ohms. The component features a compact 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm x 0.7mm. Frequency stability is specified at ±30 ppm over the temperature range of -40°C to +85°C, ensuring reliable timing performance in embedded systems.

Feature Summary

• Compact surface-mount design suitable for space-constrained PCB layouts
• Stable frequency output within specified industrial temperature ranges
• Integrated no-lead SMD package for automated assembly compatibility

Applications

• Embedded communication modules requiring precise clock signals
• Microcontroller system timing references
• Consumer electronics with limited board space

Procurement Notes

Verify the complete part number against manufacturer documentation to ensure correct tolerance and temperature specifications. Confirm package orientation and pin configuration during integration. Cross-reference datasheet revisions for any updates to mechanical or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a 24.576 MHz reference is required with ±30 ppm stability across -40°C to +85°C. Ensure circuit design accommodates the 12 pF load capacitance and 50 Ohm ESR. Validate that the 3.2x2.5mm footprint aligns with available PCB silkscreen and copper pad designs.

Part Context

This part belongs to the QT325S series of thin-package quartz crystals from QST. The series offers various frequency options and stability grades, with the MAHE suffix indicating specific tolerance and temperature range characteristics. It serves as a standard timing element for general-purpose digital circuits.

Replacement Considerations

Direct substitutes must match the 24.576 MHz frequency, 12 pF load capacitance, 50 Ohm ESR, and 3.2x2.5mm SMD package. Verify equivalent stability ratings (-40°C to +85°C, ±30 ppm) and mounting compatibility. Consult manufacturer cross-reference lists for validated alternatives.