MM3Z18-AQ

Single Zener Diodes Overview

The MM3Z18-AQ is a surface-mount planar Zener diode manufactured by Diotec Semiconductor in the SOD-323F package. It features a nominal Zener voltage of 18 V with a standard tolerance of ±5%. The device supports a maximum power dissipation of 300 mW and operates within a junction temperature range of -50°C to +150°C. It is AEC-Q101 qualified, ensuring compliance with automotive reliability standards.

Single Zener Diodes Feature Summary

• Sharp Zener voltage breakdown characteristics
• Low leakage current performance
• AEC-Q101 qualification for automotive applications

Single Zener Diodes Applications

• Voltage stabilization circuits
• Voltage regulators

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the -AQ suffix to confirm AEC-Q101 qualification status. Ensure the procurement documentation references the correct SOD-323F package type and confirms compliance with RoHS, REACH, and Conflict Minerals regulations as specified in the manufacturer datasheet.

Single Zener Diodes Selection Notes

Select this component when an 18 V reference or regulation point is required in compact designs. The SOD-323F footprint allows for space-constrained layouts. Confirm that the 300 mW power dissipation rating aligns with the thermal management capabilities of the target PCB layout under expected operating conditions.

Single Zener Diodes Part Context

This component belongs to the MM3Z series of SMD Planar Zener Diodes produced by Diotec Semiconductor. The series covers a wide voltage range from 2.4 V to 47 V. The MM3Z18-AQ specifically represents the 18 V variant within this lineup, offering standardized E24 grading for consistent voltage tolerances across production batches.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' SOD-323F Zener diodes rated at 18 V and 300 mW. Verify that any substitute meets the same AEC-Q101 qualification requirements if automotive usage is intended.