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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-18 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount 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 1 kHz. Rated for AEC-Q101 qualification, it supports a power dissipation of 300 mW on FR-4 boards and functions within a temperature range of -55 °C to +150 °C.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- ESD protection exceeding 8 kV human body model and 800 V machine model
- RoHS-compliant HE3_A material categorization
Applications
- Automotive electronic circuits requiring ESD protection
- Voltage reference applications in compact surface-mount designs
- Clamping and protection in general-purpose electronics
Procurement Notes
Verify that the ordering suffix matches the required reel size and qualification level. Confirm RoHS compliance status and AEC-Q101 certification through official manufacturer documentation before procurement. Ensure storage conditions adhere to moisture sensitivity level 1 requirements.
Selection Notes
Select this component when a 4.7 V Zener voltage with ±5% tolerance is required in an SOT-23 package. Consider the 300 mW power dissipation limit on FR-4 boards and the operating temperature range of -55 °C to +150 °C. Verify compatibility with circuit test currents around 5 mA.
Part Context
This part belongs to the DZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers graded Zener voltages according to the international E24 standard. The HE3_A suffix indicates RoHS compliance and AEC-Q101 qualification, distinguishing it from commercial grade variants.
Replacement Considerations
Direct substitutes include other DZ23 series parts with identical voltage ratings but different packaging or qualification levels, such as DZ23C4V7-E3-18. Cross-manufacturer equivalents must be verified against electrical characteristics and package dimensions.
