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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.9V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：3.9 V
- Tolerance：±2%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：95 Ohms
- Current - Reverse Leakage @ Vr：-
- 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 AZ23B3V9-E3-08 is a silicon planar Zener diode from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 3.9 V with a tight tolerance of ±2%, indicated by the 'B' designation. The device operates at a test current of 5 mA and exhibits a maximum dynamic resistance of 90 Ω. Electrical characteristics include a reverse leakage current of 1 μA at 1 V and a temperature coefficient ranging from -7 to -3 x 10⁻⁴/°C. It supports an operating temperature range from -55 °C to +150 °C and provides ESD protection exceeding 8 kV (HBM) and 800 V (MM).
Feature Summary
- Dual common anode configuration for versatile circuit integration.
- High electrostatic discharge robustness compliant with AEC-Q101 standards.
- RoHS-compliant commercial grade construction.
Applications
- Voltage reference circuits requiring precise low-voltage regulation.
- ESD protection stages in signal conditioning paths.
- Clamping applications in automotive-grade electronic modules.
Procurement Notes
Verify the specific ordering code against the manufacturer's official documentation to ensure correct tolerance and packaging specifications. Confirm that the component meets all required environmental and electrical standards for the intended application before finalizing procurement decisions.
Selection Notes
Select this component when a dual common anode topology is required alongside strict voltage tolerance limits. The narrow temperature coefficient range makes it suitable for precision analog applications where stable reference voltages are critical across varying thermal conditions.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of graded Zener voltages according to the international E24 standard, providing designers with standardized options for various voltage regulation needs in compact surface-mount designs.
Replacement Considerations
Direct substitutes within the same series include AZ23B3V9-G3-08 or AZ23B3V9-E3-18, which share identical electrical characteristics but may differ in reel size or specific manufacturing lot variations. Ensure any replacement maintains the dual common anode configuration and ±2% tolerance requirement.
FAQ
What is the marking code for the AZ23B3V9-E3-08?
The marking code for this device is DD5.
Does the AZ23B3V9-E3-08 have AEC-Q101 qualification?
No, the base P/N-E3 variant is RoHS-compliant commercial grade. AEC-Q101 qualification is available only for the HE3_A suffix variants.
What is the maximum power dissipation on an FR-4 board?
The maximum power dissipation is 300 mW when mounted on an FR-4 board with the recommended soldering footprint.
