QT325S-24.000MEIV-T

Overview

The QST QT325S-24.000MEIV-T is a 24 MHz surface-mount crystal oscillator housed in a standard 3.2x2.5 mm SMD package with a typical height of 0.7 mm. It features a ceramic body and glass seal construction, ensuring robust environmental resistance. The component operates within a temperature range of -30°C to +85°C, maintaining a frequency stability of ±20 ppm across this span. Designed for general clock applications, it supports a load capacitance of 8 pF and complies with RoHS standards, including lead content exemptions where applicable.

Feature Summary

• Glass-sealed ceramic construction provides enhanced moisture and dust resistance compared to plastic packages.
• Wide operating temperature range from -30°C to +85°C ensures reliable performance in industrial environments.
• Standard 3225 footprint allows direct replacement in existing PCB layouts without design modifications.

Applications

• Microcontroller unit (MCU) main clock sources
• USB interface reference clocks
• Camera module timing circuits
• Industrial IoT gateway systems

Procurement Notes

Verify the specific suffix 'MEIV' against the manufacturer's current datasheet to confirm the exact temperature range (-30°C to +85°C) and stability (+/- 20 ppm). Ensure the ordering code matches the required load capacitance of 8 pF. Cross-reference the package dimensions (3.2x2.5x0.7mm) with your PCB footprint library to guarantee mechanical compatibility before finalizing procurement orders.

Selection Notes

Select this model when a compact 3225 package is required for industrial-grade timing applications. It is suitable for designs needing stable 24 MHz references under varying thermal conditions. Consider the 8 pF load capacitance requirement for oscillator circuit matching. This component bridges consumer and industrial needs, offering a balance of size, stability, and cost-effectiveness for embedded systems.

Part Context

The QT325S series represents QST's line of surface-mount crystals designed for high reliability. The 3225 form factor is widely adopted in portable electronics and industrial controllers due to its small profile. This specific variant targets applications requiring precise timing in constrained spaces, leveraging ceramic packaging for superior durability over standard plastic alternatives.

Replacement Considerations

Direct substitutes include other 24 MHz crystals in 3225 packages with identical 8 pF load capacitance and +/- 20 ppm stability at -30°C to +85°C. Verify ESR values and drive level specifications to ensure circuit compatibility during cross-brand transitions.