QTM325-100.000MBE-T

Overview

The QTM325-100.000MBE-T is a surface-mount quartz crystal oscillator manufactured by QST, designed for high-frequency timing applications. It operates at a nominal frequency of 100 MHz with a frequency stability of ±50 ppm across the industrial temperature range of -40°C to +85°C. The device utilizes CMOS output logic and requires a supply voltage of 3.3 VDC. Its compact package dimensions are 3.2 mm x 2.5 mm with a maximum seated height of 1.10 mm. This component integrates a ceramic housing and supports enable/disable functionality, making it suitable for space-constrained digital circuits requiring precise clock signals.

Feature Summary

• Surface-mount design with compact 3.2mm x 2.5mm footprint
• CMOS output logic for direct digital interface compatibility
• Industrial temperature range operation from -40°C to +85°C
• Integrated enable/disable control function

Applications

• High-speed digital signal processing systems
• Communication equipment clock generation
• Embedded system microcontroller timing
• Network infrastructure timing solutions

Procurement Notes

Verify the specific suffix 'MBE' against official QST documentation to confirm the exact frequency tolerance, load capacitance, and drive level specifications. Ensure the procurement channel provides genuine components with traceable manufacturing dates. Cross-reference the datasheet revision history to confirm compatibility with current design requirements. Confirm that the supplier offers appropriate handling procedures for sensitive surface-mount devices.

Selection Notes

Select this oscillator when a 100 MHz CMOS clock signal is required in a 3.2x2.5mm package. Consider the ±50 ppm stability requirement against system jitter budgets. Verify that the 3.3V supply voltage aligns with the target circuit's power rails. Evaluate the thermal performance within the -40°C to +85°C range for the intended operating environment. Compare pin-out configurations with existing board layouts to ensure mechanical fit.

Part Context

This component belongs to the QTM325 series of surface-mount quartz oscillators from QST. The series offers various frequencies and packages, with the 325 variant specifically denoting the 3.2mm x 2.5mm form factor. These oscillators are engineered for reliability in consumer electronics and industrial applications where stable timing is critical. The MBE suffix typically indicates specific electrical characteristics and packaging details defined by the manufacturer.

Replacement Considerations

Direct replacements must match the 100 MHz frequency, 3.3V supply, CMOS output, and 3.2x2.5mm package dimensions. Verify equivalent stability ratings of ±50 ppm or better. Check for compatible enable/disable functionality if utilized in the design. Consult QST's official substitution guide for validated alternatives.