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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 20V 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)：20 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 15 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 AZ23B20-G3-08 is a dual common anode silicon planar Zener diode array from the AZ23-G series, manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 20 V with a tight tolerance of ±2%, tested at a current of 5 mA. The device operates within a junction temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board. Packaged in a compact SOT-23 surface-mount housing, it provides high ESD protection exceeding 8 kV via the human body model.
Feature Summary
- Dual common anode configuration for space-efficient circuit integration
- High electrostatic discharge robustness exceeding 8 kV (HBM) and 800 V (MM)
- Tight voltage tolerance of ±2% for precision reference applications
Applications
- Voltage clamping and transient suppression in signal lines
- Precision voltage reference generation in measurement circuits
- Over-voltage protection for sensitive semiconductor inputs
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm reel size and tape width specifications. Ensure that the component meets RoHS compliance requirements for the intended manufacturing process. Cross-reference the datasheet revision date to validate the electrical parameters before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with a 20 V breakdown is required in a minimal footprint. The ±2% tolerance makes it suitable for applications demanding tighter voltage accuracy than standard commercial grades. Consider the thermal resistance characteristics if operating near the maximum power dissipation limits.
Part Context
This part belongs to the AZ23-G series of small signal Zener diodes designed for general-purpose switching and regulation tasks. The 'B' designation indicates the tightened ±2% voltage tolerance variant, while the 'G3' suffix denotes lead-free packaging compliant with environmental directives. The series covers a wide voltage range from 2.2 V to 75 V.
Replacement Considerations
AZ23B20-E3-08
FAQ
What is the dynamic impedance of the AZ23B20-G3-08?
The dynamic impedance (ZZ) at the test current of 5 mA is specified as a maximum of 50 Ohms.
Does the AZ23B20-G3-08 have AEC-Q101 qualification?
No, the standard AZ23B20-G3-08 is not AEC-Q101 qualified. Automotive-grade versions are available upon request directly from the manufacturer.
What is the reverse leakage current specification?
The maximum reverse leakage current (IR) is 0.05 µA when measured at a reverse voltage of 15 V.
