AZ23B11-HE3-08

Overview

The AZ23B11-HE3-08 is a dual common anode silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 11 V with a tight tolerance of ±2%. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. It is AEC-Q101 qualified for automotive applications, offers high ESD protection (>8 kV HBM), and is supplied in SOT-23 packages on 8 mm tape reels.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• AEC-Q101 qualification ensuring reliability in automotive environments
• High electrostatic discharge (ESD) robustness exceeding 8 kV via human body model
• Tight voltage tolerance of ±2% for precise regulation requirements

Applications

• Automotive electronic systems requiring robust voltage reference
• General-purpose voltage clamping and protection circuits
• Precision analog signal conditioning where stable reference is critical

Procurement Notes

Verify the specific ordering suffix HE3_A-08 against official documentation to confirm AEC-Q101 automotive qualification status. Ensure the component matches the required ±2% tolerance designation indicated by the 'B' character in the part number. Cross-reference the package type and reel specifications to guarantee compatibility with automated surface-mount assembly processes.

Selection Notes

Select this variant when a dual common anode topology is necessary to minimize footprint while maintaining strict voltage accuracy. The ±2% tolerance distinguishes it from standard commercial grade parts. Consider the thermal resistance characteristics and maximum power dissipation limits relative to the expected ambient operating conditions during system integration.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes. The series provides a wide range of standardized voltages based on the E24 standard. The specific suffixes denote compliance levels, tolerance grades, and packaging formats, allowing designers to select components tailored for either commercial or rigorous automotive-grade applications.

Replacement Considerations

AZ23B11-E3-08: Commercial grade equivalent without automotive qualification.

FAQ

What is the dynamic resistance at the test current?

The dynamic resistance (ZZ) at the test current of 5 mA is specified as a maximum of 20 Ohms.

How does the reverse leakage current behave at low voltages?

At a reverse voltage of 8.5 V, the maximum reverse leakage current is limited to 0.1 µA.

What is the marking code for this specific device?

The marking code assigned to the AZ23B11 device is DE6.