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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 4.7V SOT-23-3
- Series：AZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Anode
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 Ohms
- Current - Reverse Leakage @ Vr：3 µA @ 2 V
- Operating Temperature：150°C (TJ)
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
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Overview
The AZ23C4V7-HE3_A-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 package. It features a nominal Zener voltage of 4.7 V with a ±5% tolerance and a maximum power dissipation of 300 mW on an FR-4 board. The device operates within a temperature range of -55 °C to +150 °C and includes AEC-Q101 automotive qualification. Electrical characteristics include a reverse leakage current of 3 μA maximum at 5 V and a dynamic resistance of 78 Ω at a test current of 5 mA.
Feature Summary
- Dual common anode configuration for space-efficient circuit designs
- Automotive-grade reliability through AEC-Q101 qualification
- ESD protection exceeding 8 kV via human body model standards
Applications
- Automotive electronic systems requiring robust voltage regulation
- General-purpose voltage reference circuits
- Clamping applications in signal processing paths
Procurement Notes
Verify component authenticity by cross-referencing the manufacturer's document number 86340 and revision 1.2 against official Vishay channels. Confirm that the HE3_A suffix corresponds to the required AEC-Q101 qualification status and RoHS compliance specifications before finalizing procurement orders.
Selection Notes
Select this component when a dual Zener array with automotive certification is necessary. Ensure the 4.7 V nominal voltage aligns with the target circuit requirements. Verify that the SOT-23 footprint matches the PCB layout constraints and that the 300 mW thermal dissipation rating is sufficient for the expected operating conditions.
Part Context
This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers various voltage options graded according to the E24 standard. The specific ordering code indicates a 4.7 V nominal voltage, 5% tolerance, automotive qualification, and tape-and-reel packaging.
Replacement Considerations
AZ23C4V7-HE3-18
FAQ
What is the marking code for the AZ23C4V7-HE3_A-18?
The marking code for this device is D47.
How does the 'HE3_A' suffix affect the component's qualification?
The 'HE3_A' suffix indicates that the device is RoHS-compliant and qualified to the AEC-Q101 automotive standard.
What is the maximum reverse leakage current specified for this part?
The maximum reverse leakage current is 3 μA when measured at a reverse voltage of 5 V.
