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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 24V 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)：24 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 18 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 AZ23B24-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 24 V with a tight tolerance of ±2%. Electrical characteristics are defined at a test current of 5 mA, featuring a maximum reverse leakage current of 0.05 µA and a dynamic resistance of 70 Ω. The device supports an operating temperature range from -55 °C to +150 °C and dissipates up to 300 mW on a standard FR-4 board.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Tight voltage tolerance of ±2% for precision regulation applications
- High thermal stability across extended industrial temperature ranges
Applications
- Voltage reference circuits requiring precise dual rails
- Overvoltage protection for sensitive signal lines
- Clamping applications in communication equipment
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and tape specifications. Ensure that the component meets RoHS3 compliance requirements for your manufacturing process. Cross-reference the datasheet revision date to confirm the electrical parameters match your design specifications before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with high precision is required in a compact footprint. The ±2% tolerance distinguishes it from standard ±5% variants. Verify that the 70 Ω dynamic resistance meets the noise and regulation requirements of the target application. Confirm compatibility with automated pick-and-place equipment due to the SOT-23 package dimensions.
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 Zener voltages from 2.2 V to 75 V. The 'B' designation indicates the tighter ±2% voltage tolerance grade compared to the standard 'C' grade. These devices are designed for general-purpose switching and regulation tasks in consumer and industrial electronics.
Replacement Considerations
AZ23B24-E3-18
FAQ
What is the marking code for the AZ23B24-G3-18?
The marking code for this device is DF4.
How does the tolerance affect the Zener voltage range?
With a ±2% tolerance, the Zener voltage ranges from a minimum of 23.52 V to a maximum of 24.48 V at the nominal value of 24 V.
What is the maximum reverse leakage current specified?
The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 18 V.
