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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 33V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：33 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 25 V
- 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 AZ23C33-HE3-08 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 surface-mount package. It features a nominal Zener voltage of 33 V with a ±5% tolerance and a maximum power dissipation of 300 mW on an FR-4 board. The device is AEC-Q101 qualified for automotive applications, offering high ESD protection exceeding 8 kV (HBM) and 800 V (MM). Electrical characteristics include a reverse leakage current of 50 µA at 25 V and a dynamic resistance of 80 Ω at a test current of 2 mA.
Feature Summary
- Dual common anode configuration integrates two independent Zener elements within a single compact SOT-23 footprint.
- AEC-Q101 qualification ensures compliance with rigorous automotive reliability standards.
- High electrostatic discharge robustness protects sensitive circuitry against human body model and machine model events.
Applications
- Voltage reference circuits requiring dual stable potential rails
- Transient voltage suppression in automotive electronic control units
- Input protection stages for microcontroller analog-to-digital converters
Procurement Notes
Verify component authenticity by cross-referencing the ordering code AZ23C33-HE3-08 with official Vishay documentation. Confirm that the suffix HE3_A indicates AEC-Q101 automotive qualification and RoHS compliance. Ensure the procurement channel provides traceability to the manufacturer's production lot data.
Selection Notes
Select this part when a dual Zener array with automotive-grade reliability is required. The C designation specifies a standard 5% voltage tolerance; use the B designation if tighter 2% precision is necessary. Verify that the 300 mW thermal rating on FR-4 meets the specific application's power dissipation requirements.
Part Context
This component belongs to the Vishay AZ23 series of small signal Zener diodes. The series offers a wide range of graded voltages from 2.2 V to 75 V according to the E24 standard. The HE3 variant specifically denotes AEC-Q101 qualification, distinguishing it from the commercial grade E3 versions within the same physical package family.
Replacement Considerations
AZ23C33-E3-08: Commercial grade equivalent without automotive qualification.
FAQ
What does the 'HE3' suffix indicate for this component?
The HE3 suffix designates that the device is RoHS-compliant and qualified to the AEC-Q101 automotive reliability standard.
How is the internal structure configured?
The device contains two Zener diodes connected in a common anode configuration within a single SOT-23 package.
What is the specified ESD protection capability?
The component provides ESD protection greater than 8 kV according to the Human Body Model and greater than 800 V according to the Machine Model.
