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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)：90 Ohms
- Current - Reverse Leakage @ Vr：3 µA @ 1 V
- Operating Temperature：150°C (TJ)
- 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_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 within a SOT-23 surface-mount package. The nominal Zener voltage is 4.3 V with a tight tolerance of ±2%. Electrical characteristics include a maximum reverse leakage current of 1 µA at 3 V and a dynamic resistance of 90 Ω at a test current of 5 mA. The device is AEC-Q101 qualified for automotive applications and supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- AEC-Q101 qualification ensuring reliability in automotive environments
- ESD protection capability exceeding 8 kV via human body model
Applications
- Automotive electronic systems requiring robust voltage regulation
- General-purpose voltage reference circuits
- Clamping and protection stages in signal processing paths
Procurement Notes
Verify that the ordering code suffix HE3_A-08 corresponds to the specific AEC-Q101 qualified variant rather than the commercial grade E3 version. Confirm the tape and reel packaging format matches the required manufacturing equipment specifications before finalizing procurement orders.
Selection Notes
Select this component when a precise 4.3 V reference with ±2% tolerance is required in a compact SOT-23 footprint. Ensure the application operates within the specified thermal limits and accounts for the dynamic resistance value during load transient analysis.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes, which offers a wide range of voltages from 2.2 V to 75 V. The series provides both commercial and automotive grades, utilizing standard E24 grading for voltage selection across various industry applications.
Replacement Considerations
AZ23B4V3-E3-08 (Commercial Grade)
FAQ
What is the difference between the AZ23B4V3-HE3_A-08 and AZ23B4V3-E3-08?
The HE3_A suffix indicates AEC-Q101 qualification for automotive use, whereas the E3 suffix denotes the commercial grade version.
What is the dynamic resistance of the AZ23B4V3-HE3_A-08?
The maximum dynamic resistance (ZZ) is 90 Ω, measured at a test current (IZT1) of 5 mA.
