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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 4.3V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：4.3 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：95 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B4V3-HE3-08 is a silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It features a dual common-anode configuration with a nominal Zener voltage of 4.3 V and 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 reliability and offers high ESD protection exceeding 8 kV via the human body model.
Feature Summary
- Dual common-anode Zener array architecture
- AEC-Q101 qualified for automotive applications
- High electrostatic discharge robustness
- Tight ±2% voltage tolerance grading
Applications
- Automotive circuit voltage regulation
- ESD protection networks
- Precision reference voltage generation
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer's part number against official Vishay documentation. Confirm that the ordering suffix matches the required tape-and-reel quantity and RoHS compliance status. Ensure the specific batch meets the AEC-Q101 qualification standards required for your application environment.
Selection Notes
Select this variant when a precise 4.3 V breakdown voltage with ±2% tolerance is required. The HE3 suffix indicates AEC-Q101 qualification, distinguishing it from commercial grade parts. Verify that the common-anode topology aligns with the circuit design requirements before finalizing the component choice.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series provides various voltage grades and tolerance options in compact SOT-23 packages suitable for space-constrained printed circuit board layouts.
Replacement Considerations
AZ23B4V3-E3-08 (Commercial Grade)
FAQ
What is the dynamic resistance at the test current?
The maximum dynamic resistance (ZZ) at IZT1 is 90 Ohms.
How does the HE3 suffix affect the component?
The HE3 suffix denotes that the device is AEC-Q101 qualified for automotive use, unlike the base E3 version which is commercial grade.
What is the reverse leakage current specification?
The maximum reverse leakage current is 3 μA at a reverse voltage of 4 V.
