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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 5.1V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：5.1 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：60 Ohms
- Current - Reverse Leakage @ Vr：2 µA @ 2 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 AZ23B5V1-HE3_A-18 is a silicon planar Zener diode 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 5.1 V with a tight tolerance of ±2%. Electrical testing is conducted at a test current of 5 mA. The device is AEC-Q101 qualified for automotive applications and offers high ESD protection exceeding 8 kV via the human body model. It operates within a temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration providing two independent Zener channels in a single compact package
- AEC-Q101 qualification ensuring suitability for demanding automotive electronic environments
- High electrostatic discharge robustness exceeding 8 kV according to the human body model standard
Applications
- Automotive circuit voltage regulation and reference generation
- ESD protection networks for sensitive signal lines
- Clamping circuits in consumer electronics requiring precise voltage thresholds
Procurement Notes
Verify the specific ordering code suffix against official documentation to confirm tape and reel specifications. Ensure the component meets RoHS compliance requirements for the intended manufacturing process. Cross-reference the AEC-Q101 qualification status if the application demands strict automotive reliability standards before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener solution with a common anode is required in a small surface-mount footprint. The ±2% tolerance makes it suitable for precision applications compared to standard ±5% variants. Consider the thermal resistance characteristics and power dissipation limits relative to the expected ambient operating conditions during circuit design.
Part Context
This part belongs to the Vishay AZ23 series of small signal Zener diodes. The series utilizes silicon planar technology and is available in various voltage grades following the E24 standard. The HE3_A suffix indicates AEC-Q101 qualification, while the -18 suffix specifies the 13-inch reel packaging format containing 10,000 units per reel.
Replacement Considerations
AZ23B5V1-E3-18
FAQ
What is the maximum reverse leakage current specified for this device?
The maximum reverse leakage current is 1 µA at a reverse voltage of 5 V.
How does the dynamic resistance vary between low and high current tests?
The dynamic resistance (ZZ) is specified as 60 Ω at the test current of 5 mA, and decreases to 480 mΩ at a lower pulse current test condition.
What marking code is used on the SOT-23 package?
The device is marked with the code DD8 on its surface.
