QTM750-12.000MBE-T

Overview

The QTM750-12.000MBE-T is a standard CMOS quartz oscillator manufactured by QST, operating at a nominal frequency of 12 MHz. It utilizes a ceramic package with dimensions of 7.0 x 5.0 mm and a height of 1.3 mm. The device functions on a 3.3 V DC supply voltage and delivers a CMOS output signal. Frequency stability is rated at ±50 ppm across an operating temperature range of -40°C to +85°C. The component features enable/disable functionality and is supplied in tape and reel packaging for surface-mount assembly.

Feature Summary

• CMOS output signal compatibility for digital logic integration
• Enable and disable control functionality for power management
• Ceramic package construction ensuring environmental durability
• Surface-mount design optimized for automated PCB assembly

Applications

• General-purpose clock generation for embedded systems
• Timing reference for microprocessors and microcontrollers
• Synchronization sources for communication interfaces
• Clock distribution in consumer electronics hardware

Procurement Notes

Verify the specific suffix 'BE' against official QST documentation to confirm the exact pin configuration and enable/disable logic levels. Ensure the required operating temperature range aligns with the -40°C to +85°C specification. Confirm that the 3.3V supply voltage matches the target circuit design before procurement. Cross-reference the package dimensions with the mechanical drawing to ensure board space availability.

Selection Notes

Select this component when a stable 12 MHz timing source is required for CMOS-compatible digital circuits. The ±50 ppm stability suits applications where moderate precision is sufficient. Consider the 3.3V supply requirement and the enable/disable feature for power-sensitive designs. Verify that the 7x5mm footprint fits within the available PCB area constraints.

Part Context

This oscillator belongs to the QTM750 series, which offers various frequency options within a standardized 7.0 x 5.0 mm ceramic package. The series provides CMOS outputs with consistent electrical characteristics across different frequencies. Variants differ primarily in operating frequency and specific suffix codes indicating package or performance nuances.

Replacement Considerations

Direct substitutes include other QTM750-series oscillators from QST with compatible frequencies and package types. Cross-manufacturer replacements must match the 7x5mm footprint, 3.3V supply, CMOS output, and ±50 ppm stability. Verify pinout compatibility and enable logic levels when considering alternative brands.