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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 47V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：47 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：100 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 35 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 AZ23B47-E3-08 is a dual common anode silicon planar Zener diode array from Vishay, housed in an SOT-23 surface-mount package. It provides two independent Zener diodes sharing a common anode terminal. The nominal Zener voltage is 47 V with a tight tolerance of ±2%. Electrical characteristics include a maximum reverse leakage current of 50 µA at 35 V and a dynamic resistance of 97 Ω at the test current of 2 mA. The device operates within a temperature range of -55 °C to +150 °C and supports a power dissipation of up to 500 mW.
Feature Summary
- Dual common anode configuration for space-efficient circuit design
- High precision voltage grading with ±2% tolerance
- Robust ESD protection exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant commercial grade construction
Applications
- Precision voltage reference circuits requiring dual rails
- Over-voltage protection for sensitive signal lines
- Clamping applications in high-speed data interfaces
- Voltage regulation in compact consumer electronics
Procurement Notes
Verify that the ordering code suffix matches the required tape and reel specifications. Confirm RoHS compliance status aligns with project environmental requirements. Ensure the component marking code DG1 corresponds to the specific batch being received. Cross-reference the datasheet revision date against manufacturing records to validate technical accuracy.
Selection Notes
Select this part when a dual Zener solution with a common anode is required in a minimal footprint. The ±2% tolerance makes it suitable for applications demanding tighter voltage control than standard ±5% devices. Consider the 97 Ω dynamic resistance for impedance matching needs. Verify thermal management capabilities if operating near the upper temperature limits.
Part Context
This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of voltages from 2.2 V to 75 V in both single and dual configurations. The 'B' designation indicates the tighter ±2% voltage tolerance variant compared to the standard 'C' grade.
Replacement Considerations
AZ23B47-E3-18
FAQ
What is the marking code for the AZ23B47-E3-08?
The marking code for this device is DG1.
How does the dual common anode configuration function?
It integrates two independent Zener diodes that share a single common anode terminal, reducing the number of required connections in the circuit.
What is the maximum reverse leakage current specified?
The maximum reverse leakage current is 50 µA, measured at a reverse voltage of 35 V.
