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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 15V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：15 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：30 Ohms
- Current - Reverse Leakage @ Vr：50 nA @ 10.5 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B15-HE3_A-18 is a silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 package. It features a dual common anode configuration with two independent Zener elements. The nominal Zener voltage is 15 V with a tight tolerance of ±2%. Electrical characteristics include a maximum reverse leakage current of 0.05 µA at 14 V and a dynamic resistance of 30 Ω at a test current of 5 mA. The device is AEC-Q101 qualified for automotive applications and supports a maximum power dissipation of 300 mW on an FR-4 board.
Feature Summary
- Dual common anode configuration providing two independent Zener channels within a single compact surface-mount package.
- AEC-Q101 qualification ensuring compliance with automotive electronic component standards.
- High ESD protection capability exceeding 8 kV via human body model and 800 V via machine model.
- Tight voltage tolerance of ±2% achieved through precise grading according to international standards.
Applications
- Automotive circuit voltage regulation
- Precision reference voltage generation
- Over-voltage protection circuits
Procurement Notes
Verify that the ordering code matches the specific suffix requirements for automotive grade (HE3_A) and tape-and-reel packaging (-18). Confirm RoHS compliance status and material categorization details directly from the manufacturer's documentation before finalizing procurement specifications.
Selection Notes
Select this part when a dual Zener array with high precision is required in a small footprint. The HE3_A suffix indicates AEC-Q101 qualification suitable for automotive environments. Ensure the 15 V nominal voltage aligns with the target circuit design and verify thermal management capabilities for the intended operating conditions.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of Zener voltages from 2.2 V to 75 V in various tolerance grades and packaging options, catering to diverse general-purpose and specialized electronic applications.
Replacement Considerations
AZ23B15-E3-18
FAQ
What is the difference between the AZ23B15-E3 and AZ23B15-HE3_A variants?
The AZ23B15-HE3_A variant is AEC-Q101 qualified for automotive applications, whereas the AZ23B15-E3 variant is commercial grade without this specific automotive qualification.
What does the 'B' indicate in the part number AZ23B15?
The 'B' indicates a Zener voltage tolerance of ±2%, which is tighter than the standard ±5% tolerance indicated by the 'C' in other part numbers like AZ23C15.
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.
