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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.3V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：3.3 V
- Tolerance：±5%
- 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 AZ23C3V3-HE3-08 is a dual common-anode silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 3.3 V with a standard tolerance of ±5%. 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 features AEC-Q101 automotive qualification, high ESD protection capability exceeding 8 kV via the human body model, and low reverse leakage current.
Feature Summary
- Dual common-anode configuration integrating two Zener elements in a single compact SOT-23 package
- AEC-Q101 qualified for automotive reliability standards
- High electrostatic discharge robustness exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant manufacturing process
Applications
- Automotive electronic circuit voltage regulation
- ESD protection for sensitive signal lines
- Reference voltage generation in dual-channel applications
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer's part number against official Vishay documentation. Confirm that the specific suffix indicates AEC-Q101 automotive qualification rather than commercial grade. Ensure the ordering code matches the required ±5% tolerance designation before finalizing procurement specifications.
Selection Notes
Select this component when a dual Zener solution with a common anode is required in a space-constrained design. The AZ23C3V3 variant specifically targets 3.3 V reference needs. Consider the thermal resistance characteristics and power dissipation limits relative to the expected ambient operating conditions during circuit layout.
Part Context
This device belongs to the broader AZ23 series of small-signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standardized voltage options graded according to the international E24 standard, allowing designers to select precise voltage ratings while maintaining consistent packaging and electrical characteristics across the product line.
Replacement Considerations
AZ23C3V3-E3-08
FAQ
What is the difference between the HE3_A and E3 suffixes?
The HE3_A suffix denotes that the device is AEC-Q101 qualified for automotive applications, whereas the E3 suffix indicates a RoHS-compliant commercial grade without automotive qualification.
How is the polarity defined in the common-anode configuration?
In the common-anode configuration, the anodes of both internal Zener diodes are connected to a single pin (Pin 3), while the cathodes are available on separate pins (Pins 1 and 2).
What is the maximum allowable power dissipation on an FR-4 board?
The maximum power dissipation is rated at 300 mW when mounted on an FR-4 board using the recommended soldering footprint.
