QTM252E-25.000MDM-T

Overview

The QTM252E-25.000MDM-T is a quartz crystal unit manufactured by QST, designed for precision timing applications. It operates at a fundamental frequency of 25.000 MHz. The component utilizes a surface mount technology (SMT) package to facilitate automated assembly processes in modern electronic manufacturing. This specific model variant includes integrated load capacitors within the package structure, which simplifies circuit design by reducing external component count and board space requirements. The device is engineered to provide stable oscillation characteristics suitable for digital communication systems and microcontroller clock sources.

Feature Summary

• Integrated load capacitors eliminate the need for external discrete components
• Surface mount package design supports high-volume automated assembly
• Fundamental mode operation ensures precise frequency stability

Applications

• Microcontroller clock generation circuits
• Digital communication interface modules
• Consumer electronics timing references

Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation before ordering. Confirm that the specified package dimensions and pin configuration match the target PCB footprint. Ensure that the operating temperature range meets the environmental requirements of the final application. Cross-reference the datasheet revision date to guarantee access to the most current electrical specifications and mechanical drawings.

Selection Notes

Select this component when a compact solution with built-in load capacitance is required for 25 MHz applications. Evaluate the available ESR values and frequency tolerance requirements against system constraints. Consider the thermal performance and mounting reliability associated with the specific SMT package type. Compare alternative packages if board space or height restrictions differ from standard profiles.

Part Context

This part belongs to QST's series of surface mount quartz crystals. The series offers various frequencies and package sizes to accommodate different design needs. The 'QTM' prefix typically denotes a specific form factor within their portfolio. These components are widely used in industries requiring reliable timing signals without the complexity of discrete capacitor networks.

Replacement Considerations

Check for direct substitutes from other manufacturers offering identical frequency and package dimensions. Verify compatibility of load capacitance values if replacing with non-integrated capacitor models. Ensure that the replacement part meets the same frequency stability and aging rate specifications.