SZMMSZ3V3T1G

Single Zener Diodes Overview

The SZMMSZ3T1G is a Zener voltage regulator diode manufactured by onsemi, designed for surface-mount applications. It features a nominal Zener voltage of 3.3 V with a tight tolerance of 2%. The device operates within a power dissipation rating of 500 mW and utilizes the SOD-123 package. 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. It supports an operating temperature range from -55 °C to +150 °C and meets AEC-Q101 qualification standards for automotive use.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• High precision 2% voltage tolerance for stable regulation
• Low leakage current design for efficiency
• SOD-123 surface mount package for automated assembly

Single Zener Diodes Applications

• Automotive electronic circuits requiring robust voltage reference
• General-purpose voltage regulation in consumer electronics
• Protection circuits against over-voltage conditions
• Clamping applications in signal processing lines

Single Zener Diodes Procurement Notes

Verify the exact part number suffix during procurement, as variations such as ET1G or ST1G may exist within the same family. Confirm RoHS compliance and material composition declarations are available for your specific region. Ensure the supplier provides valid traceability documents required for automotive PPAP processes if applicable. Cross-reference datasheet revisions to confirm pinout and thermal characteristics match your design requirements before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a precise 3.3 V reference is needed in space-constrained designs. The SOD-123 package offers a balance between power handling and board density. Consider the 2% tolerance for applications demanding tight voltage stability. Verify that the 500 mW power rating suits the expected thermal environment. For higher current needs, evaluate parallel configurations or alternative packages within the MMSZ series.

Single Zener Diodes Part Context

This device belongs to the MMSZ series of Zener diodes from onsemi, which are engineered for high-density surface-mount technology. The series provides a wide range of voltage options in the compact SOD-123 plastic package. These diodes serve as reliable alternatives to traditional leaded packages, facilitating automated PCB assembly while maintaining performance suitable for industrial and automotive environments.

Single Zener Diodes Replacement Considerations

Direct substitutes include MMSZ3V3T1G and MM3Z3V3ST1G, which share similar electrical specifications and package types. Verify compatibility with SZMM3Z3V3ST1G for automotive-grade applications requiring specific site controls. Always compare absolute maximum ratings and thermal resistance values before substituting.