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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 4.7V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：4.7 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：78 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：-55°C ~ 150°C
- Grade：Automotive
- Qualification：AEC-Q101
- Mounting Type：Surface Mount
- pa_package-case：
- Supplier Device Package：SOT-23-3
- Voltage - Forward (Vf) (Max) @ If：-
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Overview
The DZ23C4V7-HE3-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 4.7 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 3 μA at 1 V. Dynamic resistance is specified at 78 Ω under these conditions. It is AEC-Q101 qualified, ensuring compliance with automotive electronics standards for reliability.
Feature Summary
- AEC-Q101 qualified for automotive applications
- Silicon planar construction for robust performance
- ESD protection exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant HE3_A ordering suffix
Applications
- Automotive electronic circuits requiring voltage regulation
- General-purpose voltage reference applications
- Protection against electrostatic discharge events
Procurement Notes
Verify that the specific part number includes the HE3_A suffix to confirm AEC-Q101 qualification status. Ensure the procurement documentation references the correct datasheet revision 1.2 or later to validate electrical characteristics. Confirm RoHS compliance requirements align with the HE3_A designation before finalizing orders.
Selection Notes
Select this component when a 4.7 V reference with ±5 % tolerance is required in a compact SOT-23 footprint. Consider the dynamic resistance of 78 Ω for load regulation needs. Verify thermal management capabilities against the 300 mW dissipation limit on FR-4 boards if operating near maximum ratings.
Part Context
This component belongs to the Vishay DZ23 series of small signal Zener diodes. The series covers a wide voltage range from 2.2 V to 75 V using standardized E24 grading. The HE3_A variant specifically denotes automotive-grade qualification within this family, distinguishing it from commercial grade parts.
Replacement Considerations
Cross-reference with other DZ23 series variants for different voltage levels. Check equivalent offerings from other manufacturers that meet AEC-Q101 standards and maintain identical SOT-23 pinout configurations.
