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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 18V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：18 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：50 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 14 V
- 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 DZ23C18-HE3-18 is a Zener diode manufactured by Vishay General Semiconductor. It features a nominal voltage of 18 V with a tolerance of ±5%. The device operates at a test current of 14 mA and maintains a maximum impedance of 10 ohms. It has a power dissipation rating of 500 mW in a DO-213AA (SMB) surface-mount package. The component utilizes the Green Molding Compound compliant with RoHS directives and halogen-free standards, ensuring environmental safety for electronic assemblies.
Feature Summary
- Utilizes advanced planar die technology for enhanced reliability and stable electrical performance under varying thermal conditions.
- Encapsulated in a halogen-free Green Molding Compound that meets strict environmental regulations including RoHS compliance.
- Designed for surface-mount applications with a compact DO-213AA footprint to optimize board space efficiency.
Applications
- Voltage regulation circuits requiring precise reference levels
- Overvoltage protection stages in consumer electronics
- Clamping applications in signal processing paths
Procurement Notes
Verify the specific ordering suffix HE3-18 against the manufacturer's latest datasheet to confirm package type and material composition. Ensure the procurement channel provides traceability documentation confirming RoHS and halogen-free status as specified in the official Vishay product data sheet.
Selection Notes
Select this component when a 18 V Zener reference is required in a surface-mount SMB package. Confirm that the circuit's power dissipation requirements do not exceed the 500 mW rating under worst-case thermal conditions. Verify compatibility with automated pick-and-place equipment due to the specific lead frame configuration.
Part Context
This part belongs to Vishay's HE3 series of super-efficient planar Zener diodes. The series is characterized by low leakage current and improved forward voltage characteristics compared to standard equivalents. The HE3 designation indicates the use of environmentally friendly materials and manufacturing processes.
Replacement Considerations
Cross-reference with Vishay part numbers sharing the same electrical specifications and DO-213AA package. Verify pinout compatibility and thermal resistance values before substituting with generic equivalents from other manufacturers.
FAQ
What is the maximum operating junction temperature for this device?
The maximum operating junction temperature is typically 175 °C, as defined in the Vishay technical data sheet for this component family.
Does the HE3 suffix indicate a change in electrical performance?
The HE3 suffix primarily denotes the use of halogen-free Green Molding Compound and RoHS compliance, rather than altering the core electrical parameters like voltage or power rating.
