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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)：70 Ohms
- Current - Reverse Leakage @ Vr：-
- Operating Temperature：150°C (TJ)
- 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_A-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 4.7 V with a ±5% tolerance and operates at a test current of 5 mA. The device has a maximum reverse leakage current of 3 µA and a dynamic resistance of 78 Ω at IZT1. It is AEC-Q101 qualified for automotive applications, offering ESD protection exceeding 8 kV (HBM) and 800 V (MM). Power dissipation is rated at 500 mW on FR-4 boards, with an operating temperature range of -55 °C to +150 °C.
Feature Summary
- AEC-Q101 qualified for automotive reliability
- High ESD capability per AEC-Q101 standards
- RoHS-compliant HE3_A material categorization
Applications
- Automotive voltage regulation circuits
- ESD protection networks
- Reference voltage generation
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm AEC-Q101 qualification status and reel packaging specifications. Ensure that the procurement channel sources directly from authorized distributors or the manufacturer to guarantee component authenticity and traceability. Cross-reference the datasheet revision date with production lot codes to ensure compliance with current manufacturing standards.
Selection Notes
Select this component when a 4.7 V reference with tight tolerance is required in space-constrained designs. The SOT-23 footprint allows for compact surface-mount layouts. Verify thermal management requirements, as power dissipation drops significantly above ambient temperatures. Confirm that the 5 mA test current aligns with the target circuit's biasing conditions for accurate voltage regulation.
Part Context
This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series covers a wide voltage range from 2.2 V to 75 V, graded according to the E24 standard. The HE3_A suffix specifically denotes RoHS compliance combined with AEC-Q101 automotive qualification, distinguishing it from commercial grade variants.
Replacement Considerations
Direct replacements include other Vishay DZ23 series parts with identical voltage ratings and AEC-Q101 qualification, such as DZ23C4V7-E3-08 if automotive qualification is not strictly required. Verify pinout compatibility and thermal characteristics before substituting with components from other manufacturers.
