QT325S-25.000MEEQ-T

Overview

The QST QT325S-25.000MEEQ-T is a surface-mount MHz quartz crystal designed for industrial applications. It operates at a nominal frequency of 25 MHz with a load capacitance of 10 pF and an equivalent series resistance (ESR) of 50 Ohms. The component utilizes a 4-SMD, no lead package with dimensions of 3.2 mm x 2.5 mm. Frequency stability is rated at ±10 ppm at 25°C and ±10 ppm over the operating temperature range of -20°C to +70°C.

Feature Summary

• Seam seal construction utilizing ceramic materials for enhanced environmental protection
• High frequency stability maintained across specified industrial temperature ranges
• Compact surface-mount footprint optimized for automated assembly processes

Applications

• Industrial control systems requiring precise clock timing
• Communication equipment utilizing standard MHz frequencies
• General-purpose electronic circuits needing stable oscillation sources

Procurement Notes

Verify the specific manufacturer designation when sourcing, as distributors may list this component under TXC Corporation due to manufacturing relationships. Confirm that the requested part matches the exact QST model number to ensure correct packaging and traceability documentation aligns with project requirements.

Selection Notes

Select this component when a 3.2x2.5 mm SMD crystal with 10 pF load capacitance is required. Ensure the application environment remains within the -20°C to +70°C operational range to maintain the specified ±10 ppm stability. Verify circuit compatibility with the 50 Ohm ESR specification during design phase.

Part Context

This part belongs to the QT325S series of seam seal quartz crystals. The series is characterized by small form factor packages suitable for space-constrained designs. The specific suffix indicates the frequency, stability, and load capacitance parameters defined by the manufacturer's naming convention.

Replacement Considerations

Direct substitutes include the 8Y-25.000MEEQ-T from TXC Corporation, which shares identical electrical specifications and package dimensions. Cross-reference datasheets to confirm pinout compatibility and thermal characteristics before implementation.