MM5Z12B-AQ

Single Zener Diodes Overview

The MM5Z12B-AQ is a surface-mount planar Zener diode manufactured by Diotec Semiconductor in an SOD-523 package. It provides a nominal Zener voltage of 12 V with a tolerance of approximately ±2%. The device features a sharp breakdown characteristic and low leakage current, operating within a junction temperature range of -55°C to +150°C. Power dissipation is rated at 200 mW or 300 mW depending on copper pad mounting conditions. It is AEC-Q101 qualified.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive applications
• Approximately ±2% tolerance of Zener voltage
• Sharp Zener voltage breakdown characteristic
• Low reverse leakage current

Single Zener Diodes Applications

• Voltage stabilization
• Voltage regulators

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration when ordering, as the -AQ designation indicates AEC-Q101 qualification distinct from standard commercial grades. Confirm that the selected component meets the required reliability standards for your intended circuit environment before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component for circuits requiring precise voltage reference or regulation where tight tolerance is necessary. Ensure the thermal design accommodates the specified power dissipation limits based on the available copper pad area on the printed circuit board to maintain safe operating temperatures.

Single Zener Diodes Part Context

This part belongs to the MM5Z series of SMD Planar Zener Diodes produced by Diotec Semiconductor. The series covers a wide voltage range from 2.4 V to 47 V in the compact SOD-523 case outline, designed for general-purpose commercial and industrial grade electronics applications.

Single Zener Diodes Replacement Considerations

No publicly confirmed substitute part numbers are documented in the provided source material.