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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 43V 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)：43 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 32 V
- 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 AZ23B43-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 features a nominal Zener voltage of 43 V with a tight tolerance of ±2%. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. Key electrical characteristics include a maximum reverse leakage current of 50 nA at 32 V and a dynamic resistance of 97 Ω at 2 mA. It supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- High precision ±2% Zener voltage tolerance
- Robust thermal performance with low junction-to-lead thermal resistance
- Compliant with RoHS standards and halogen-free manufacturing
Applications
- Precision voltage reference circuits requiring dual channels
- Over-voltage protection stages in signal conditioning paths
- Clamping applications in high-reliability industrial electronics
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer's document number 86339 and revision 1.2 against official Vishay records. Confirm that the ordering suffix indicates standard reel packaging and commercial grade material categorization. Ensure compliance with specific environmental declarations if required for the target application.
Selection Notes
Select this variant when a precise 43 V breakdown voltage is required alongside a second independent channel sharing a common ground. The ±2% tolerance distinguishes it from the standard ±5% 'C' series variants. Verify that the 2 mA test current aligns with the biasing requirements of the host circuit design.
Part Context
This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series utilizes silicon planar technology and offers a wide range of graded voltages from 2.2 V to 75 V. The 'B' designation specifically denotes the tighter ±2% voltage tolerance compared to the standard 'C' series.
Replacement Considerations
AZ23B43-E3-18
FAQ
What is the marking code for the AZ23B43-G3-18?
The device marking code is DG0.
How does the test current differ between the B and C series?
For the 43 V rating, both the AZ23B43 and AZ23C43 variants utilize a test current (IZT) of 2 mA.
What is the maximum dynamic resistance specified?
The maximum dynamic resistance (ZZ) at the test current of 2 mA is 97 Ω.
