QT325S-24.576MAHJ-T

Overview

The QT325S-24.576MAHJ-T is a quartz crystal resonator manufactured by QST, operating at a fundamental frequency of 24.576 MHz. It features a frequency tolerance and stability of ±30 ppm. The component has a load capacitance of 18 pF and an equivalent series resistance (ESR) of 50 Ohms maximum. It is housed in a compact 4-SMD, No Lead package with dimensions of 3.2 mm x 2.5 mm x 0.7 mm. The device supports surface-mount installation and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides stable frequency generation at 24.576 MHz with ±30 ppm tolerance for precise timing applications.
• Utilizes a low-profile 4-SMD no-lead package design suitable for automated surface-mount assembly processes.
• Ensures reliable operation across extended industrial temperature ranges from -40°C to +85°C.

Applications

• Clock signal generation in microcontroller-based embedded systems
• Timing reference sources for communication interface circuits
• Frequency control components in consumer electronic devices

Procurement Notes

Verify the specific manufacturer designation, as this part number is associated with QST but may appear under TXC branding in some distributor catalogs. Confirm the package dimensions and electrical parameters match the required 3.2x2.5mm SMD form factor. Ensure the load capacitance of 18pF aligns with the circuit design requirements before procurement.

Selection Notes

Select this component when a 24.576 MHz fundamental frequency crystal is required with ±30 ppm stability. The 18 pF load capacitance and 50 Ohm ESR must be compatible with the oscillator circuit design. Consider the 4-SMD no-lead package for space-constrained PCB layouts requiring surface-mount technology compatibility.

Part Context

This component belongs to the QT325S series of quartz crystals, characterized by small footprint and standard SMD packaging. It serves as a passive frequency-determining element in electronic circuits. The series offers various frequency options within a standardized mechanical outline, facilitating design reuse across different product lines.

Replacement Considerations

The 7V-24.576MAHE-T from TXC Corporation is documented as a parameter-equivalent substitute. Verify that the replacement's 12 pF load capacitance matches the original 18 pF requirement or adjust the circuit accordingly. Other similar parts may exist but require strict electrical parameter validation.