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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 4.3V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：4.3 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：95 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 DZ23C4V3-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 4.3 V with a tolerance of ±5 %. The device operates at a test current of 5 mA and features a dynamic resistance of 90 Ω maximum. It is AEC-Q101 qualified for automotive applications and offers ESD protection exceeding 8 kV (HBM) and 800 V (MM). Power dissipation reaches 500 mW on lead-mounted conditions and 300 mW on FR-4 boards.
Feature Summary
- AEC-Q101 qualified for automotive reliability
- High ESD capability per human body and machine models
- RoHS-compliant HE3_A material category
Applications
- Automotive voltage regulation circuits
- ESD protection networks
- Reference voltage generation
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm AEC-Q101 qualification status. Ensure the component matches the required RoHS compliance level for the target assembly process. Cross-reference the datasheet revision date to validate electrical parameters before finalizing procurement specifications.
Selection Notes
Select this component when a 4.3 V reference is required in a compact SOT-23 footprint. Confirm that the operating temperature range of -55 °C to +150 °C aligns with the system environment. Evaluate the thermal resistance values to ensure adequate heat dissipation within the intended circuit layout constraints.
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. The HE3 variant specifically denotes AEC-Q101 qualification and RoHS compliance, distinguishing it from the standard commercial grade E3 versions.
Replacement Considerations
Direct substitutes include other DZ23 series parts with identical voltage ratings, such as DZ23C4V3-E3-08, provided AEC-Q101 qualification is not mandatory. Verify pinout compatibility and thermal characteristics when considering cross-manufacturer alternatives.
