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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 5.1V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：5.1 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：60 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 800 mV
- 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 AZ23B5V1-E3-18 is a dual common anode Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 5.1 V with a tight tolerance of ±2%, indicated by the 'B' in the part number. The device operates within a test current range of 1 to 5 mA and provides a maximum dynamic resistance of 60 Ω at 1 kHz. Rated for a maximum power dissipation of 300 mW on an FR-4 board, it supports an operating temperature range from -55 °C to +150 °C. Packaged in a compact SOT-23 (TO-236-3) surface-mount case, it is supplied in tape and reel format.
Feature Summary
- Dual common anode configuration allows efficient space-saving integration in circuit designs.
- Tight ±2% voltage tolerance ensures high precision for sensitive signal conditioning applications.
- Robust ESD protection capability exceeding 8 kV via human body model standards.
Applications
- Precision voltage reference circuits requiring stable dual outputs.
- Overvoltage protection stages for differential signal lines.
- Clamping networks in data communication interfaces.
Procurement Notes
Verify the specific ordering code suffix against project requirements to ensure correct packaging quantity and lead time alignment. Confirm RoHS compliance status matches environmental regulations for the target market. Validate that the commercial grade designation meets all operational temperature and reliability criteria before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with strict ±2% voltage accuracy is required in a minimal footprint. Ensure the application current remains within the specified 1 to 5 mA test range for optimal performance. Verify that the thermal management strategy accommodates the 300 mW dissipation limit on standard FR-4 substrates during peak operation.
Part Context
This device belongs to the AZ23 series of small signal silicon planar Zener diodes. The series offers a wide range of graded voltages from 2.2 V to 75 V across various tolerance grades. It utilizes advanced planar technology to deliver consistent electrical characteristics and reliable long-term performance in compact surface-mount packages.
Replacement Considerations
AZ23C5V1-E3-18
FAQ
What does the 'B' designation signify in the AZ23B5V1-E3-18 part number?
The 'B' indicates a standard Zener voltage tolerance of ±2%. Replacing it with 'C' would result in a wider ±5% tolerance.
Is the AZ23B5V1-E3-18 qualified for automotive applications?
No, the base P/N-E3 is designated as commercial grade. Automotive qualification requires the HE3_A suffix indicating AEC-Q101 compliance.
What is the maximum power dissipation rating for this device?
The maximum power dissipation is 500 mW when mounted directly to leads, but it is rated at 300 mW when mounted on an FR-4 board with the recommended soldering footprint.
