QT325S-38.000MAAE-T

Overview

The QT325S-38.000MAAE-T is a 38 MHz fundamental mode crystal resonator manufactured by QST. It features a 4-pin CSMD package with dimensions of 3.2x2.5x0.7mm. The component operates within a temperature range of -20°C to +70°C. Key electrical parameters include an initial tolerance and frequency stability of ±30 ppm, a load capacitance of 12 pF, and an equivalent series resistance (ESR) of 50 Ohms. The device is supplied in tape and reel packaging for automated surface-mount assembly.

Feature Summary

• Provides precise timing signals at a nominal frequency of 38 MHz
• Designed for surface-mount technology integration via a compact 4-pin CSMD footprint
• Maintains frequency stability within specified limits across the operational temperature range

Applications

• Precision timing circuits requiring stable clock references
• Microcontroller system oscillators
• Communication module frequency control

Procurement Notes

Verify the specific suffix 'MAAE' against the manufacturer's current datasheet to confirm the exact tolerance, stability, and temperature range specifications. Ensure the required operating environment aligns with the -20°C to +70°C rating. Confirm that the 12pF load capacitance matches the host circuit design requirements before finalizing procurement.

Selection Notes

Select this component when a 38 MHz frequency is required for surface-mount applications. Consider the ±30 ppm stability and -20°C to +70°C temperature range to ensure compatibility with the target system's environmental conditions. Verify that the 50 Ohm ESR and 12pF load capacitance are compatible with the oscillator circuit design.

Part Context

This part belongs to the QT325S series of crystals from QST, which offers various frequencies and stability options. The 'MAAE' suffix indicates specific performance characteristics including ±30 ppm tolerance and stability within the -20°C to +70°C range. Other suffixes in the series may offer different temperature ranges or tighter tolerances.

Replacement Considerations

Direct substitutes must match the 38 MHz frequency, 3.2x2.5mm package, and 12pF load capacitance. Verify that alternative components meet the same ±30 ppm stability and -20°C to +70°C temperature requirements. Cross-reference with QST's official substitution lists for confirmed equivalents.