QT325S-54.000MEIE-T

Overview

The QT325S-54.000MEIE-T is a quartz crystal resonator manufactured by QST, designed for surface-mount applications. It operates at a fundamental frequency of 54.000 MHz with a load capacitance of 12 pF and an equivalent series resistance of 80 Ohms. The component utilizes a seam seal package construction, measuring 3.2mm x 2.5mm x 0.7mm. Frequency stability is specified at ±10 ppm within the -20°C to +70°C temperature range, ensuring reliable timing performance in compact electronic circuits.

Feature Summary

• Seam seal package construction for environmental protection
• Surface-mount design compatible with automated assembly
• High frequency stability within standard industrial temperature ranges

Applications

• Microcontroller clock sources
• Communication module timing references
• Digital signal processing circuits

Procurement Notes

Verify the specific ordering suffix 'EIE' against official QST documentation to confirm the exact load capacitance and temperature stability specifications. Ensure the requested quantity matches the manufacturer's standard tape and reel packaging requirements. Confirm that the 3.2x2.5mm footprint aligns with the target PCB layout constraints before finalizing orders.

Selection Notes

Select this component when a 54 MHz reference is required in a small form factor. The 12 pF load capacitance must match the oscillator circuit design. Consider the ±10 ppm stability requirement relative to system jitter tolerance. Verify that the operating temperature range covers the intended application environment.

Part Context

This part belongs to the QT325S family of quartz crystals from QST. These components are widely used as timing elements in consumer electronics and industrial equipment. The family offers various frequencies and stability grades within a standardized 3.2x2.5mm package, facilitating design reuse across different product lines.

Replacement Considerations

Direct substitutes include other manufacturers offering 54 MHz crystals in 3250 packages with 12 pF load capacitance and ±10 ppm stability. Verify pin compatibility and electrical parameters before substitution.