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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.9V SOT-23-3
- Series：AZ23-G
- 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)：95 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 150°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B3V9-G3-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23-G series, housed in a SOT-23 surface-mount package. It provides two independent Zener diodes sharing a common anode terminal. The nominal Zener voltage is 3.9 V with a tight tolerance of ±2%. Electrical characteristics are measured at a test current of 5 mA, yielding a maximum reverse leakage current of 3 µA and a dynamic resistance of 90 Ω. The device supports a junction temperature up to 150 °C and operates within a range of -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- Tight voltage tolerance of ±2% for precision regulation applications
- Automotive-grade ESD protection exceeding 8 kV HBM and 800 V MM
Applications
- Precision voltage reference circuits requiring dual rails
- Over-voltage protection stages in signal conditioning paths
- Clamping networks for sensitive input interfaces
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm reel size and tape specifications. Confirm RoHS compliance status and material categorization details directly with authorized distributors or the manufacturer before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with high voltage accuracy is required in a compact footprint. Ensure the operating current remains near the specified 5 mA test point to maintain the guaranteed ±2% tolerance. Verify that the thermal dissipation requirements on the target PCB footprint align with the 300 mW rating.
Part Context
This part belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series offers a wide range of standard E24 Zener voltages from 2.2 V to 75 V. The 'B' designation indicates the tighter ±2% tolerance variant compared to the standard ±5% 'C' grade.
Replacement Considerations
AZ23B3V9-E3-18
FAQ
What is the marking code for the AZ23B3V9-G3-18?
The marking code for this device is DD5.
Does the AZ23B3V9-G3-18 support AEC-Q101 qualification?
AEC-Q101 qualification is available for the AZ23-G series, but it must be requested directly from the manufacturer as it is not standard for all ordering codes.
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.
