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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 3.9V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：3.9 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：80 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 DZ23C3V9-HE3_A-18 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 3.9 V with a tolerance of ±5 %. The device operates within a temperature range of -55 °C to +150 °C and features AEC-Q101 qualification for automotive applications. Electrical characteristics include a maximum reverse leakage current of 3 µA at 2.7 V and a dynamic resistance of 90 Ω at a test current of 1 mA.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- ESD protection exceeding 8 kV via human body model
- RoHS-compliant HE3_A material category
Applications
- Automotive circuit voltage regulation
- General-purpose voltage reference applications
- Protection against electrostatic discharge events
Procurement Notes
Verify component authenticity through authorized distribution channels. Confirm that the specific ordering suffix matches the required tape-and-reel packaging format. Ensure compliance with RoHS directives and AEC-Q101 automotive standards prior to integration into final assemblies.
Selection Notes
Select this component when a precise 3.9 V reference is required in space-constrained designs. The SOT-23 footprint supports automated surface-mount assembly processes. Evaluate thermal dissipation requirements against the specified junction-to-lead thermal resistance for high-power environments.
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, utilizing standardized E24 grading. The HE3_A designation indicates an environmentally friendly, lead-free construction suitable for demanding industrial and automotive sectors.
Replacement Considerations
Direct replacements must match the 3.9 V nominal voltage, SOT-23 package, and AEC-Q101 qualification. Verify equivalent dynamic resistance and leakage current specifications to ensure circuit performance remains within acceptable limits during substitution.
