DDZ21Q-7

Single Zener Diodes Overview

The DDZ21Q-7 is a Zener diode manufactured by Diodes Incorporated, designed for surface-mount applications in the SOD-123 package. It operates within an automotive-grade AEC-Q101 qualification standard, ensuring reliability in demanding environments. The device features a nominal Zener voltage of 20.4 V with a tight tolerance of ±2%. It supports a maximum power dissipation of 500 mW and maintains a low reverse leakage current of 50 nA at 17 V. The component functions reliably across a wide temperature range from -65°C to +150°C junction temperature.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Precision voltage regulation with ±2% tolerance
• Wide operating temperature range suitable for harsh environments

Single Zener Diodes Applications

• Voltage reference circuits in automotive electronics
• Over-voltage protection in vehicle control modules
• Clamping applications in high-reliability power systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'Q' indicates AEC-Q101 automotive qualification when sourcing. Confirm the package type is SOD-123 and the Zener voltage matches the required 20.4 V nominal value. Ensure the supplier provides documentation confirming compliance with automotive reliability standards before integration into production designs.

Single Zener Diodes Selection Notes

Select this component when automotive certification is mandatory for the application. The ±2% tolerance offers higher precision than standard industrial variants. The SOD-123 package provides a compact footprint suitable for space-constrained PCB layouts. Consider the 500 mW power rating to ensure adequate thermal headroom in the final assembly design.

Single Zener Diodes Part Context

This part belongs to the DDZ1 series of Zener diodes from Diodes Incorporated. The 'Q' suffix specifically denotes automotive-grade qualification. It complements other components in power management and signal conditioning circuits where stable voltage references are critical for system performance and safety compliance.

Single Zener Diodes Replacement Considerations

Check for direct substitutes within the DDZ1 series that share the same voltage and tolerance. Verify if alternative manufacturers offer AEC-Q101 qualified equivalents in the SOD-123 package. Ensure any replacement matches the 500 mW power dissipation and temperature range specifications.