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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 39V 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)：39 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：90 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 29 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 AZ23B39-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 39 V with a tight ±2% tolerance. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. Electrical characteristics include a maximum reverse leakage current of 50 μA at 29 V and a dynamic resistance of 87 Ω at the test current. It supports an operating temperature range from -55 °C to +150 °C.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Tight ±2% Zener voltage tolerance for precision regulation
- High thermal stability across extended industrial temperature ranges
Applications
- Precision voltage reference circuits
- Overvoltage protection networks
- Signal conditioning and clamping applications
Procurement Notes
Verify the specific ordering suffix '-18' to confirm the 10,000-unit reel packaging format. Ensure that the component meets RoHS3 compliance requirements for your manufacturing process. Cross-reference the manufacturer's datasheet document number 86339 for the most current electrical specifications and mechanical dimensions before finalizing procurement orders.
Selection Notes
Select this part when a dual Zener array with high voltage accuracy is required in a compact footprint. The 'B' designation indicates the tighter ±2% tolerance band compared to standard 'C' variants. Verify that the 300 mW power dissipation rating on FR-4 boards aligns with your thermal management strategy and ambient operating conditions.
Part Context
This component belongs to the AZ23-G series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series offers a wide range of graded Zener voltages from 2.2 V to 75 V. The AZ23B39 variant specifically targets applications requiring precise voltage regulation within the higher end of the low-voltage spectrum.
Replacement Considerations
AZ23C39-G3-18 (±5% tolerance)
FAQ
What is the dynamic resistance of the AZ23B39-G3-18?
The dynamic resistance (ZZ) is specified as a maximum of 87 Ω at the test current of 2 mA.
How does the 'B' suffix affect the Zener voltage?
The 'B' suffix indicates a tightened Zener voltage tolerance of ±2%, whereas the 'C' suffix denotes a standard ±5% tolerance.
What is the maximum reverse leakage current?
The maximum reverse leakage current (IR) is 50 μA, measured at a reverse voltage (VR) of 29 V.
