QT252S-54.000METJ-T

Crystals Overview

The FTS QT252S-54.000METJ-T is a quartz crystal unit designed for surface-mount applications, featuring a compact SMD package with dimensions of 2.5mm x 2.0mm. It operates at a nominal frequency of 54.00MHz and utilizes a seam seal construction within a ceramic housing. The component supports a load capacitance of 18pF and offers frequency stability specifications of +/-10ppm at 25°C and +/-10ppm across the -30°C to +85°C temperature range. This model is part of the QT252S series, engineered for reliable performance in electronic circuits requiring precise timing signals.

Crystals Feature Summary

• Seam seal construction for environmental protection
• Compact surface-mount design suitable for automated assembly
• High frequency stability across industrial temperature ranges

Crystals Applications

• General purpose timing circuits
• Consumer electronics devices
• Industrial control systems

Crystals Procurement Notes

Verify the specific manufacturer designation associated with the FTS branding, as this nomenclature may indicate a distributor-specific marking or a specialized variant rather than a standard industry-wide part number. Confirm that the electrical parameters match the required system specifications before integration. Ensure compatibility with reflow soldering profiles defined for ceramic surface-mount crystals. Cross-reference the exact suffixes to guarantee the correct load capacitance and stability grades are procured.

Crystals Selection Notes

Select this component when a 54MHz reference signal is required in a space-constrained environment. The 2.5mm x 2.0mm footprint allows for high-density PCB layouts. Consider the +/-10ppm stability requirement against the operational temperature extremes of the target application. The ceramic case provides robust mechanical integrity compared to metal can alternatives, making it suitable for modern consumer and industrial electronics where size and durability are critical factors.

Crystals Part Context

This crystal belongs to the QT252S series, which represents a line of miniature quartz resonators. These components are widely utilized in digital electronics for clock generation and frequency control. The series is characterized by its small physical profile and consistent electrical performance, catering to the demands of portable devices and compact instrumentation where traditional larger oscillators cannot fit.

Crystals Replacement Considerations

Direct substitutes include other 54MHz crystals with identical 2.5x2.0mm SMD footprints and 18pF load capacitance. Verify that alternative parts meet the same +/-10ppm stability requirements at both room temperature and the extended industrial range. Check for equivalent mounting styles and thermal characteristics to ensure seamless integration without circuit redesign.