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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.9V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：3.9 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：90 Ohms
- Current - Reverse Leakage @ Vr：3 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
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Overview
The AZ23B3V9-HE3_A-08 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 a nominal Zener voltage of 3.9 V and a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum reverse leakage current of 3 μA at 3 V and a dynamic resistance of 90 Ω at a test current of 5 mA.
Feature Summary
- Dual common anode Zener diode array designed for precise voltage regulation
- AEC-Q101 qualified for high reliability in automotive environments
- ESD protection capability exceeding 8 kV via human body model
Applications
- Automotive voltage reference circuits
- Precision voltage clamping and protection
- Signal conditioning in harsh thermal environments
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific ordering suffix matches the required tolerance and qualification standards. Ensure storage conditions comply with moisture sensitivity level 1 requirements prior to soldering.
Selection Notes
Select this part when a ±2% voltage tolerance is required instead of the standard ±5% option. The HE3_A suffix indicates AEC-Q101 qualification, distinguishing it from commercial grade E3 variants. Verify that the 3.9 V nominal voltage aligns with the target circuit's regulation needs.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded voltages from 2.2 V to 75 V across various packages, providing standardized options for discrete voltage regulation tasks.
Replacement Considerations
AZ23B3V9-E3-08 (Commercial Grade)
FAQ
What does the 'B' designation indicate in the part number?
The 'B' indicates a tighter Zener voltage tolerance of ±2%, compared to the standard ±5% tolerance denoted by 'C'.
Is this component suitable for automotive use?
Yes, the HE3_A suffix confirms that the device is AEC-Q101 qualified for automotive applications.
What is the ESD rating for this device?
The device provides ESD protection greater than 8 kV according to the human body model and greater than 800 V according to the machine model.
