SZMM3Z3V0ST1G

Single Zener Diodes Overview

The SZMM3Z3V0ST1G is a Zener diode manufactured by onsemi, designed for surface-mount applications in the SOD-323-2 package. It features a nominal Zener voltage of 3.3 V with a tight tolerance of 2%. The device supports a steady-state power dissipation of 300 mW and operates within an extended temperature range from -65°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA and a Zener impedance of 95 Ohms at a test current of 5 mA. This component is AEC-Q100 qualified, ensuring reliability for automotive environments.

Single Zener Diodes Feature Summary

• AEC-Q100 qualified for automotive-grade reliability
• Compact SOD-323-2 surface-mount packaging
• High thermal stability with wide operating temperature range

Single Zener Diodes Applications

• Automotive circuit voltage regulation
• Protection of sensitive electronic components against overvoltage
• Reference voltage generation in compact PCB designs

Single Zener Diodes Procurement Notes

Verify the specific suffix ST1G corresponds to the required tape-and-reel quantity and packaging format. Confirm that the AEC-Q100 qualification status meets your specific automotive project requirements. Ensure the SOD-323-2 footprint matches your board layout constraints. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 3.3 V reference is needed in space-constrained automotive designs. The 2% tolerance offers higher precision than standard general-purpose Zeners. Consider the 300 mW power rating for thermal management in dense assemblies. The low leakage current makes it suitable for high-impedance circuits where minimal current draw is critical.

Single Zener Diodes Part Context

This part belongs to the MM3Z series of Zener diodes from onsemi, which are optimized for small-footprint applications. The 'SZ' prefix typically denotes automotive-grade variants within this family, distinguished by enhanced reliability testing compared to commercial equivalents. These diodes are widely used in consumer electronics and automotive systems requiring robust voltage clamping.

Single Zener Diodes Replacement Considerations

Direct substitutes include the MM3Z3V3ST1G for non-automotive applications or other AEC-Q100 qualified 3.3 V Zener diodes in SOD-323 packages from onsemi. Verify pinout compatibility and thermal characteristics before substitution.