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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 30V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：30 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 21 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 AZ23B30-HE3_A-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 30 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive reliability and RoHS compliant. Electrical characteristics include a maximum reverse leakage current of 50 μA at 22.5 V and a dynamic resistance of 80 Ω at a test current of 2 mA. It operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board.
Feature Summary
- Dual common anode configuration integrating two Zener diodes in a single compact SOT-23 package.
- AEC-Q101 qualification ensures suitability for demanding automotive electronic environments.
- High ESD protection capability exceeding 8 kV via human body model and 800 V via machine model.
- Tight voltage tolerance of ±2% provides precise regulation for sensitive circuit applications.
Applications
- Automotive electronics requiring robust voltage reference or clamping
- General-purpose voltage regulation in space-constrained designs
- ESD protection circuits for signal lines
Procurement Notes
Verify the specific ordering code suffix against the manufacturer's official documentation to confirm the tape-and-reel quantity and packaging format. Ensure that the procurement channel sources genuine components directly from authorized distributors to maintain AEC-Q101 qualification integrity and traceability throughout the supply chain.
Selection Notes
Select this component when a dual Zener array with high precision is required in a small footprint. The ±2% tolerance variant is suitable for applications needing tighter voltage control than standard ±5% devices. Confirm that the operating environment meets the specified thermal and electrical limits for automotive-grade silicon components.
Part Context
This part belongs to the Vishay AZ23 series of small signal Zener diodes. The series offers a wide range of standardized voltages from 2.2 V to 75 V. The 'B' designation indicates the ±2% tolerance grade, while the 'HE3_A' suffix denotes the AEC-Q101 qualified, lead-free version packaged in reels.
Replacement Considerations
AZ23B30-E3-08 (Commercial Grade)
FAQ
What is the difference between the AZ23B30-E3-08 and AZ23B30-HE3_A-08?
The primary difference is qualification; the HE3_A version is AEC-Q101 qualified for automotive applications, whereas the E3 version is commercial grade. Both share identical electrical specifications and physical dimensions.
How is the dual common anode configuration wired?
Pin 1 is the common anode connection. Pins 2 and 3 serve as the cathodes for the two individual Zener diodes, allowing them to be used independently or in series/parallel configurations relative to the common anode.
