AZ23B43-HE3_A-08

Overview

The AZ23B43-HE3_A-08 is a silicon planar Zener diode array from the AZ23 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration housed in an SOT-23 package. The nominal Zener voltage is 43 V with a tolerance of ±2%. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 50 nA at 32 V, and a dynamic resistance of 97 Ω at 1 mA. The device is AEC-Q101 qualified for automotive applications, operates within a temperature range of -55 °C to +150 °C, and supports a power dissipation of up to 500 mW.

Feature Summary

• Dual common anode configuration for compact circuit integration
• AEC-Q101 qualification ensuring reliability in automotive environments
• High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• RoHS-compliant construction with lead-free soldering compatibility

Applications

• Automotive voltage regulation circuits requiring high reliability
• Precision reference voltage generation in dual-channel systems
• ESD protection stages in sensitive signal processing paths

Procurement Notes

Verify that the ordering code matches the specific suffix requirements for tape-and-reel packaging and quantity increments. Confirm AEC-Q101 qualification status if automotive compliance is mandatory for the target application. Ensure storage conditions adhere to moisture sensitivity level 1 guidelines to prevent package damage during assembly.

Selection Notes

Select this component when a dual common anode topology is required alongside tight voltage tolerance specifications. The ±2% tolerance distinguishes it from standard commercial grade variants. Consider the thermal resistance parameters for power dissipation limits under varying ambient temperatures and board layout constraints.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes designed for surface-mount applications. The series offers a wide range of standardized Zener voltages from 2.2 V to 75 V. The HE3_A suffix indicates RoHS compliance combined with AEC-Q101 automotive qualification, differentiating it from the standard E3 commercial grade counterparts.

Replacement Considerations

AZ23B43-E3-08 provides equivalent electrical performance but lacks AEC-Q101 automotive qualification. AZ23B43-G3-08 is another parameter-equivalent alternative available from the manufacturer.