QT252S-40.000MEDB-T

Crystals Overview

The QT252S-40.000MEDB-T is a quartz crystal resonator manufactured by FTS, operating at a fundamental frequency of 40.000 MHz. It utilizes a seam seal ceramic package with dimensions of 2.5mm x 2.0mm and features four solder pads for surface mount technology. The component provides high frequency stability with an initial tolerance of +/-10 ppm at 25°C and +/-20 ppm across the industrial temperature range of -40°C to +85°C. It is designed for applications requiring precise timing signals in compact electronic systems.

Crystals Feature Summary

• Seam sealed ceramic construction ensures hermetic protection against environmental contaminants.
• Compact 2.5mm x 2.0mm footprint supports dense surface mount assembly.
• High frequency stability maintained across wide industrial temperature ranges.

Crystals Applications

• Precision timing circuits in communication modules
• Clock generation for microprocessors and digital logic
• Frequency reference sources in consumer electronics

Crystals Procurement Notes

Verify the specific suffix MEDB-T against official FTS documentation to confirm exact tolerance and load capacitance specifications. Ensure compatibility with reflow soldering profiles recommended for seam seal ceramic packages. Cross-reference the manufacturer's latest datasheet to validate current production status and compliance with RoHS directives before finalizing procurement orders.

Crystals Selection Notes

Select this component when a 40 MHz reference is required in a minimal footprint. Consider the +/-10 ppm initial tolerance for systems demanding tight frequency accuracy. Evaluate the thermal stability requirements against the specified -40°C to +85C range. Confirm that the 10pF load capacitance matches the oscillator circuit design parameters provided by the system architect.

Crystals Part Context

This part belongs to the QT252S series of surface mount crystals from FTS. The series offers various frequency options within a standardized 2.5x2.0mm ceramic package. These components are engineered for reliability in harsh environments, utilizing fundamental mode resonance to achieve stable oscillation without the need for external tuning elements.

Crystals Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical characteristics with potential alternatives from other manufacturers if supply constraints arise.