QTM252-25.000MBE-T

Overview

The QTM252-25.000MBE-T is a standard CMOS quartz oscillator manufactured by TXC Corporation under the QST brand, housed in a compact 2.5x2.0 mm surface-mount package. It operates at a fixed frequency of 25 MHz with a supply voltage of 3.3V and exhibits a frequency stability of ±50ppm across an industrial temperature range of -40°C to +85°C. The device features a four-terminal no-lead SMD footprint and includes an enable/disable control function for power management.

Feature Summary

• Compact 2.5x2.0 mm ceramic surface-mount package suitable for space-constrained designs
• Integrated enable/disable pin for active power management
• CMOS output compatible with standard digital logic interfaces

Applications

• Real-time clock timing circuits
• General-purpose system reference clocks
• Embedded microcontroller systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required operating temperature and voltage specifications. Ensure compliance with RoHS standards for environmental regulations. Validate supply chain availability as stock levels may fluctuate due to production cycles.

Selection Notes

Select this model when a 25 MHz reference signal is required within a 2.5x2.0 mm footprint. The ±50ppm stability suits general applications where high precision is not critical. Consider the enable pin functionality if dynamic power saving is necessary. Verify that the 3.3V supply aligns with the target system's voltage rails.

Part Context

This component belongs to the QTM252 series of standard oscillators designed for cost-effective timing solutions. It serves as a fundamental clock source for digital electronics, replacing discrete crystal and capacitor combinations. The series offers standardized dimensions to facilitate automated assembly processes.

Replacement Considerations

Direct substitutes include other QTM252 variants with identical 25 MHz frequencies but different voltage or temperature ratings, such as QTM252-25.000MCE-T. Cross-reference pinouts and electrical characteristics before substitution.