AZ23B10-HE3_A-18

Overview

The AZ23B10-HE3_A-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 surface-mount package. It features a nominal Zener voltage of 10 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum reverse leakage current of 0.1 µA at 7 V and a dynamic resistance of 15 Ω at a test current of 5 mA.

Feature Summary

• Dual common anode configuration providing two independent Zener diodes in a single compact package
• AEC-Q101 qualification ensuring reliability for demanding automotive electronic environments
• High ESD protection capability exceeding 8 kV via human body model and 800 V via machine model

Applications

• Automotive circuit voltage regulation and clamping
• Transient voltage suppression in sensitive signal lines
• Reference voltage generation in precision measurement circuits

Procurement Notes

Verify that the ordering code suffix matches the required tape and reel specifications. Confirm the HE3_A designation indicates AEC-Q101 qualification rather than standard commercial grade. Ensure the B tolerance code aligns with the specific voltage accuracy requirements of the target design before finalizing procurement orders.

Selection Notes

Select this component when a dual Zener array with high voltage accuracy is required. The ±2% tolerance makes it suitable for precision applications where tighter control is necessary compared to standard ±5% variants. Verify that the 10 V breakdown voltage meets the circuit's clamping or reference needs without requiring external adjustments.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of standardized voltages from 2.2 V to 75 V. The HE3_A suffix specifically denotes RoHS compliance combined with automotive-grade qualification, distinguishing it from the standard commercial E3 versions.

Replacement Considerations

AZ23B10-E3-18 (Commercial Grade)

FAQ

What is the difference between the AZ23B10-E3 and AZ23B10-HE3_A?

The AZ23B10-HE3_A variant is AEC-Q101 qualified for automotive applications, whereas the AZ23B10-E3 is a commercial grade device. Both share the same electrical characteristics and packaging.

How does the 'B' in the part number affect performance?

The 'B' indicates a Zener voltage tolerance of ±2%, which is significantly tighter than the standard ±5% tolerance found in parts designated with 'C'. This allows for higher precision in voltage regulation applications.