Z2SMB22

Single Zener Diodes Overview

The Z2SMB22 is a surface-mount silicon Zener diode manufactured by Diotec Semiconductor in the SMB (DO-214AA) package. It provides a nominal Zener voltage of 22 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -50°C to +150°C and dissipates up to 3 W at 75°C ambient temperature on a PCB with large copper pads. Key electrical characteristics include a test current of 25 mA, a dynamic resistance of 6 Ohms, and a maximum reverse leakage current of 1 µA at 75% of the nominal voltage.

Single Zener Diodes Feature Summary

• High power dissipation capability for efficient thermal management
• Standardized E24 voltage grading for consistent performance
• Compliant with RoHS directives and REACH regulations

Single Zener Diodes Applications

• Voltage stabilization circuits
• Voltage regulators
• Overvoltage protection

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability grade. Standard versions are commercial/industrial grade. Suffixes -Q indicate AEC-Q101 compliance, while -AQ indicates AEC-Q101 qualification. Ensure the requested variant aligns with the intended application environment before procurement.

Single Zener Diodes Selection Notes

Select this component when a 22 V reference or regulation point is required in a compact surface-mount design. Consider the 3 W power rating and thermal resistance values when designing heat dissipation paths. Verify if automotive-grade certification is necessary to determine between standard and qualified suffix options.

Single Zener Diodes Part Context

This part belongs to the Z2SMB series of surface-mount Zener diodes from Diotec Semiconductor. The series covers a wide voltage range from 6.8 V to 200 V, all utilizing the SMB (DO-214AA) package. This family is designed for general-purpose voltage regulation and protection tasks in commercial and industrial electronics.

Single Zener Diodes Replacement Considerations

Check datasheets for alternative manufacturers offering DO-214AA packages with 22 V nominal voltage and similar power ratings. Confirm that dynamic resistance and leakage current specifications meet the circuit requirements.