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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 43V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：43 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：150 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 30.1 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 AZ23C43-HE3_A-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 two independent Zener elements. The nominal Zener voltage is 43 V with a tolerance of ±5%. Electrical characteristics include a maximum reverse leakage current of 50 μA at 32 V and a dynamic resistance of 97 Ω at a test current of 2 mA. The device is AEC-Q101 qualified for automotive applications, operates within a temperature range of -55 °C to +150 °C, and complies with RoHS standards.
Feature Summary
- Dual common-anode Zener diode array integrated into a compact SOT-23 surface-mount package
- Automotive-grade qualification compliant with AEC-Q101 reliability standards
- ESD protection capability exceeding 8 kV via human body model and 800 V via machine model
- RoHS-compliant manufacturing process ensuring material compliance
Applications
- Voltage reference circuits requiring stable dual-channel regulation
- Over-voltage protection stages in automotive electronic control units
- Clamping networks for transient suppression in signal conditioning paths
Procurement Notes
Verify component authenticity by cross-referencing the ordering code against official Vishay documentation. Confirm that the HE3_A suffix corresponds to AEC-Q101 qualification and RoHS compliance. Ensure the specific tape-and-reel packaging matches the required quantity specifications for production integration.
Selection Notes
Select this variant when a 43 V Zener voltage with ±5% tolerance is required in a dual common-anode topology. The HE3_A suffix indicates automotive qualification, making it suitable for environments demanding higher reliability than commercial grade components. Verify thermal management requirements against the specified power dissipation limits on FR-4 substrates.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of graded Zener voltages according to the E24 standard, packaged in space-efficient SOT-23 housings to support high-density PCB layouts.
Replacement Considerations
AZ23C43-E3-08 (Commercial Grade)
FAQ
What is the difference between the AZ23C43-HE3_A-08 and AZ23C43-E3-08?
The AZ23C43-HE3_A-08 is AEC-Q101 qualified for automotive applications, whereas the AZ23C43-E3-08 is a commercial grade component without this specific automotive qualification.
What does the 'C' indicate in the part number AZ23C43-HE3_A-08?
The letter 'C' denotes a standard Zener voltage tolerance of ±5%. Replacing 'C' with 'B' would indicate a tighter tolerance of ±2%.
What is the maximum operating junction temperature for this device?
The maximum operating junction temperature (Tj) for the AZ23C43-HE3_A-08 is 150 °C.
