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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 2.4V SOT-23-3
- Series：AZ23
- Mfr：Vishay
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：2.4 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：50 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
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The AZ23B2V4-HE3_A-08 is a silicon planar Zener diode from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 2.4 V with a tight ±2% tolerance and operates at a test current of 5 mA. The device is AEC-Q101 qualified for automotive applications and offers high ESD protection exceeding 8 kV (HBM) and 800 V (MM). Electrical characteristics include a maximum reverse leakage current of 1 µA and a dynamic resistance of 100 Ω at the test current.
Feature Summary
- Dual common-anode configuration within a compact SOT-23 footprint
- Automotive-grade reliability through AEC-Q101 qualification
- High electrostatic discharge robustness for sensitive circuit environments
Applications
- Voltage reference circuits requiring precise low-voltage regulation
- Clamping and protection stages in automotive electronic modules
- Overvoltage protection interfaces for signal conditioning lines
Procurement Notes
Verify that the ordering code includes the HE3_A suffix to confirm AEC-Q101 automotive qualification and RoHS compliance. Ensure the B designation is present to guarantee the required ±2% voltage tolerance. Confirm the -08 tape-and-reel packaging specification matches the intended automated assembly equipment requirements.
Selection Notes
Select this component when a dual Zener array with common anode topology is required in a minimal surface-mount form factor. The specific 2.4 V nominal rating and ±2% tolerance make it suitable for precision reference applications where standard commercial grade tolerances are insufficient for the design specifications.
Part Context
This part belongs to the broader AZ23 series of small-signal Zener diodes manufactured by Vishay Semiconductors. The series spans a wide voltage range from 2.2 V to 75 V and utilizes the standardized SOT-23 package. The HE3_A variant specifically denotes the automotive-qualified subset of this family.
Replacement Considerations
AZ23B2V4-E3-08: Commercial grade equivalent without automotive qualification.
FAQ
What is the marking code for the AZ23B2V4-HE3_A-08?
The device marking code is DG9.
How does the HE3_A suffix affect the component's electrical performance?
The suffix indicates AEC-Q101 qualification and RoHS compliance; it does not alter the fundamental electrical parameters compared to the non-qualified version.
What is the maximum power dissipation on an FR-4 board?
The maximum power dissipation is 300 mW when mounted on an FR-4 board with the recommended soldering footprint.
