MM3Z4B7-AQ

Single Zener Diodes Overview

The MM3Z4B7-AQ is an SMD planar Zener diode from Diotec Semiconductor, housed in a compact SOD-323F package. It features a nominal Zener voltage of 4.7 V with a tight tolerance of approximately ±2%. The device dissipates up to 300 mW and operates within a junction temperature range of -50°C to +150°C. It is AEC-Q101 qualified for automotive applications. Key electrical characteristics include a dynamic resistance of 130 ohms at 5 mA test current, a reverse leakage current of 2 µA at 1 V, and a temperature coefficient ranging from -5% to -2%.

Single Zener Diodes Feature Summary

• Provides sharp Zener voltage breakdown with high precision.
• Features low leakage current for efficient operation.
• Compliant with RoHS, REACH, and Conflict Minerals regulations.

Single Zener Diodes Applications

• Voltage stabilization circuits
• Regulator reference elements

Single Zener Diodes Procurement Notes

Verify the specific suffix (AQ) confirms AEC-Q101 qualification status. Ensure the ordering code matches the required Zener voltage and tolerance. Confirm compliance requirements such as RoHS and REACH align with project specifications before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in space-constrained designs. The SOD-323F package offers a small footprint suitable for surface mount assembly. Consider the thermal resistance and power dissipation limits relative to the ambient operating conditions.

Single Zener Diodes Part Context

This part belongs to the MM3Z2B4...MM3Z75B series of SMD Planar Zener Diodes. The series covers a wide voltage range from 2.4 V to 47 V, all sharing similar mechanical and thermal characteristics within the SOD-323F outline.

Single Zener Diodes Replacement Considerations

Other parts within the MM3Z series may serve as substitutes if voltage ratings match. Verify that any replacement maintains the same package type and AEC-Q101 qualification if automotive reliability is required.

Single Zener Diodes FAQ

What is the marking code for the MM3Z4B7?

The marking code for the MM3Z4B7 is EB.

Is the MM3Z4B7-AQ suitable for ESD protection?

No, the datasheet specifies the ESD3Z series for ESD protection applications.