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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-HE3-08 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 24 V with a tight tolerance of ±2%. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 300 mW on an FR-4 board. Electrical characteristics include a reverse leakage current of 50 µA maximum at 18 V and a dynamic resistance of 70 Ω at a test current of 5 mA.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- Tight ±2% Zener voltage tolerance for precision applications
- ESD protection capability exceeding 8 kV via human body model
- Automotive-grade AEC-Q101 qualification
Applications
- Voltage reference circuits requiring stable dual outputs
- Clamping and protection stages in automotive electronics
- Precision analog signal conditioning modules
Procurement Notes
Verify that the ordering code matches the specific suffix requirements for your application. Confirm the component meets RoHS compliance standards and ensure the supplier provides traceability documentation. Cross-reference the manufacturer's latest datasheet revision to validate electrical parameters before finalizing procurement specifications.
Selection Notes
Select this part when a dual Zener array with high voltage accuracy is required in a compact footprint. The HE3_A suffix indicates AEC-Q101 qualification suitable for automotive environments. Ensure the thermal management strategy accommodates the 300 mW dissipation limit on standard PCB layouts.
Part Context
This component belongs to the Vishay AZ23 series of small signal Zener diodes. The series offers a wide range of voltages from 2.2 V to 75 V in both single and dual configurations. The 'B' designation specifically denotes the tighter ±2% tolerance variant compared to the standard ±5% 'C' grade.
Replacement Considerations
AZ23B24-E3-08 (Commercial Grade)
FAQ
What is the difference between the AZ23B24-HE3-08 and AZ23B24-E3-08?
The primary difference is qualification; the HE3_A suffix indicates AEC-Q101 automotive qualification, while the E3 suffix denotes commercial grade.
How does the dual common anode configuration function?
It integrates two independent Zener diodes sharing a common anode terminal, allowing for efficient regulation or clamping of two separate voltage lines.
