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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 9.1V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：9.1 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：15 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 6 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 AZ23B9V1-HE3_A-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration housed in a SOT-23 surface-mount package. The nominal Zener voltage is 9.1 V with a tight tolerance of ±2%. It is AEC-Q101 qualified for automotive applications and RoHS compliant. Electrical characteristics include a maximum reverse leakage current of 0.1 µA at 7 V, a dynamic resistance of 10 Ω at 5 mA, and a temperature coefficient ranging from 5 to 8 x 10⁻⁴/°C. The device supports an operating temperature range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for compact circuit integration
- AEC-Q101 qualification ensuring reliability in automotive environments
- Tight ±2% Zener voltage tolerance for precise regulation
- ESD protection exceeding 8 kV (HBM) and 800 V (MM)
Applications
- Automotive voltage reference circuits
- Overvoltage protection in high-density PCBs
- General-purpose voltage stabilization
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm tape-and-reel specifications and AEC-Q101 compliance status. Ensure that the component matches the required pinout orientation for the SOT-23 package during procurement validation.
Selection Notes
Select this part when a dual Zener array with a 9.1 V nominal voltage and ±2% tolerance is required. The HE3_A suffix indicates AEC-Q101 qualification, making it suitable for automotive designs. Verify thermal dissipation requirements against the 300 mW limit on FR-4 boards.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes. The 'B' designation specifies the ±2% voltage tolerance, while 'HE3_A' denotes the AEC-Q101 qualified variant. The '-18' suffix indicates packaging in 10,000-unit reels on 13-inch tape.
Replacement Considerations
AZ23C9V1-HE3_A-18: Offers identical electrical parameters but with a wider ±5% Zener voltage tolerance instead of ±2%.
FAQ
What is the ESD protection rating for this component?
The device provides ESD capability according to AEC-Q101 standards, exceeding 8 kV for the human body model and 800 V for the machine model.
How does the 'HE3_A' suffix affect the component's function?
The 'HE3_A' suffix indicates that the device is RoHS-compliant and qualified to the AEC-Q101 automotive standard, without altering its electrical performance compared to commercial grades.
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.
