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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 24V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：24 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 18 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 AZ23B24-HE3-18 is a silicon planar Zener diode array from the AZ23 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration within a SOT-23 surface-mount package. The nominal Zener voltage is 24 V with a tight tolerance of ±2%. Electrical characteristics include a maximum reverse leakage current of 50 µA at 18 V and a dynamic resistance of 70 Ω at a test current of 5 mA. The device supports a maximum power dissipation of 500 mW and operates across a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for compact circuit integration
- High precision voltage grading with ±2% tolerance
- Automotive-grade qualification compliant with AEC-Q101 standards
- Robust electrostatic discharge protection exceeding 8 kV human body model
Applications
- Voltage reference circuits requiring high stability
- Over-voltage protection in automotive electronic systems
- Clamping applications in signal conditioning paths
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm that the ordering suffix HE3_A indicates 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 strict voltage accuracy is required alongside automotive reliability standards. The common anode topology simplifies biasing compared to independent diodes. Verify thermal management requirements against the specified junction-to-lead thermal resistance for the target application environment.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The series offers a wide voltage range from 2.2 V to 75 V. The HE3 suffix denotes Halogen-free and RoHS-compliant construction suitable for environmentally conscious manufacturing processes.
Replacement Considerations
AZ23B24-E3-18
FAQ
What is the dynamic resistance of the AZ23B24-HE3-18?
The dynamic resistance (ZZ) is specified as a maximum of 70 Ω at a test current of 5 mA.
Does the AZ23B24-HE3-18 meet automotive standards?
Yes, the HE3_A suffix indicates that the device is qualified according to the AEC-Q101 standard for automotive applications.
What is the maximum reverse leakage current?
The maximum reverse leakage current is 50 µA when measured at a reverse voltage of 18 V.
