QTM750-25.000MAB-T

Overview

The QTM750-25.000MAB-T is a standard CMOS quartz oscillator manufactured by QST. It operates at a frequency of 25 MHz with a supply voltage of 5V. The device features an enable/disable function and provides CMOS output signals. It is housed in a 4-SMD, No Lead package with dimensions of 7.0mm x 5.0mm x 1.3mm. The unit supports a frequency stability of ±50ppm and functions within an operating temperature range of -10°C to 70°C.

Feature Summary

• Integrated enable and disable control functionality for power management
• CMOS output signal compatibility for digital logic interfaces
• Surface-mount design with no lead construction for automated assembly

Applications

• General purpose clock generation for embedded systems
• Timing reference for microcontroller units
• Synchronization circuits in consumer electronics

Procurement Notes

Verify the specific suffix 'AB' against official QST documentation to confirm the 5V supply requirement and enable/disable pin configuration. Ensure the selected variant matches the required operating temperature range of -10°C to 70°C for your application environment. Cross-reference the package outline drawing to validate footprint compatibility during PCB layout finalization.

Selection Notes

Select this component when a 5V supply is available and precise timing synchronization is required. Consider the ±50ppm stability specification against system jitter tolerance requirements. Evaluate the physical dimensions of the 7.0x5.0mm package against available board space constraints before finalizing the design.

Part Context

This model belongs to the QTM750 series of surface-mount crystal oscillators from QST. The series offers various frequency options and voltage levels. This specific part number denotes the 25 MHz variant with CMOS output and 5V operation, distinguishing it from other series members with different electrical characteristics.

Replacement Considerations

Direct substitutes include other QTM750 variants such as QTM750-25.000MCE-T if voltage or stability requirements differ. Verify pinout compatibility and thermal performance when considering alternative manufacturers' components.