QT325S-32.000MEEE-T

Overview

The QT325S-32.000MEEE-T is a surface-mount piezoelectric crystal oscillator manufactured by QST. It operates at a fundamental frequency of 32.000 MHz with a load capacitance of 12 pF and an equivalent series resistance (ESR) of 50 Ohms. The component features a 4-SMD, no-lead package with dimensions of 3.2 x 2.5 mm. Frequency stability is rated at ±10 ppm over the operating temperature range of -20°C to +70°C.

Feature Summary

• Provides precise timing signals for digital circuits using quartz resonance technology
• Designed for surface-mount assembly to support automated PCB manufacturing processes
• Maintains stable oscillation frequencies within specified thermal limits

Applications

• Clock generation for microcontrollers and processors
• Timing references in communication modules
• Synchronization circuits in consumer electronics

Procurement Notes

Verify the specific suffix 'MEEE' against official QST documentation to confirm the exact frequency tolerance and temperature range specifications. Ensure the ordering part number matches the required load capacitance and ESR values for the target circuit design. Cross-reference the package outline drawing to confirm mechanical compatibility with the footprint.

Selection Notes

Select this component when a 32 MHz reference signal is required with ±10 ppm stability between -20°C and +70°C. Consider the 12 pF load capacitance requirement for proper circuit tuning. Evaluate the 50 Ohm ESR against the oscillator circuit's drive level constraints to prevent frequency pulling or damage.

Part Context

This part belongs to the QT325S series of SMD crystals from QST. The series offers various frequency options and stability grades defined by alphanumeric suffixes. The 32.000 MHz variant serves as a common clock source for embedded systems requiring moderate precision timing.

Replacement Considerations

Direct substitutes include other manufacturers offering 32 MHz SMD crystals with identical 3.2x2.5mm footprints, 12pF load capacitance, and ±10 ppm stability. Verify pinout compatibility and electrical parameters before substitution.