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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：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23B47-HE3-18 is a silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It features a dual common-anode configuration with a nominal Zener voltage of 47 V and a tight tolerance of ±2%. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 300 mW on an FR-4 board. Electrical characteristics include a reverse leakage current of 50 μA maximum at 40 V and a dynamic resistance of 97 Ω at a test current of 2 mA.
Feature Summary
- Dual common-anode Zener diode array for compact circuit designs
- Tight voltage tolerance of ±2% for precision regulation applications
- High ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
- Automotive-grade qualification compliant with AEC-Q101 standards
Applications
- Precision voltage reference circuits requiring stable dual outputs
- Automotive electronic systems demanding high reliability and ESD robustness
- Overvoltage protection stages utilizing common-anode topology
Procurement Notes
Verify that the ordering code matches the specific suffix requirements for tape-and-reel packaging and automotive qualification. Confirm RoHS compliance status and material categorization details against the latest manufacturer documentation before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with a 47 V nominal rating and ±2% tolerance is required. Ensure the application environment stays within the specified operating temperature range and does not exceed the 300 mW power dissipation limit on standard FR-4 substrates.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of graded Zener voltages according to the international E24 standard, packaged in space-saving SOT-23 housings suitable for automated surface-mount assembly processes.
Replacement Considerations
AZ23B47-E3-18
FAQ
What is the dynamic resistance of the AZ23B47-HE3-18?
The dynamic resistance (ZZ) is 97 Ω maximum, measured at a test current of 2 mA.
Is the AZ23B47-HE3-18 qualified for automotive applications?
Yes, the HE3 suffix indicates that the device is AEC-Q101 qualified for automotive use.
What is the maximum reverse leakage current specified for this device?
The maximum reverse leakage current is 50 μA, tested at a reverse voltage of 40 V.
