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Product Detailed Parameters
- Description：DIODE ZENER ARRAY 27V SOT-23-3
- Series：DZ23
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tape & Reel (TR)
- Configuration：1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz)：27 V
- Tolerance：±5%
- Power - Max：300 mW
- Impedance (Max) (Zzt)：30 Ohms
- Current - Reverse Leakage @ Vr：100 nA @ 20 V
- 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 DZ23C27-HE3_A-18 is a silicon planar Zener diode from the Vishay DZ23 series, designed for surface-mount applications in an SOT-23 package. It provides a nominal Zener voltage of 27 V with a tolerance of ±5%. The device operates at a test current of 2 mA and features a maximum reverse leakage current of 0.05 µA at 20 V. Dynamic resistance is specified at 80 Ω (max) at the test current. It is AEC-Q101 qualified for automotive use, supports a junction temperature up to 150 °C, and offers ESD protection exceeding 8 kV via the human body model.
Feature Summary
- AEC-Q101 qualified for automotive reliability standards
- ESD capability exceeding 8 kV (HBM) and 800 V (MM)
- RoHS-compliant HE3_A material categorization
Applications
- Automotive voltage regulation circuits
- General-purpose voltage reference applications
- Transient voltage suppression in low-power systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm compliance requirements. Ensure that the component selection aligns with the required thermal management specifications for the intended operating environment. Cross-reference the datasheet revision date to ensure access to the most current electrical characteristics and mechanical dimensions before finalizing procurement orders.
Selection Notes
Select this component when a stable 27 V reference is required within an SOT-23 footprint. Consider the 2 mA test current requirement for biasing circuit design. Evaluate the dynamic resistance value for noise-sensitive applications. Confirm that the operating temperature range meets the system's environmental constraints and that the power dissipation limits are respected under worst-case conditions.
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_A suffix indicates RoHS compliance and AEC-Q101 qualification, distinguishing it from commercial grade variants. These diodes utilize silicon planar technology for consistent performance across the production batch.
Replacement Considerations
Direct replacements must match the 27 V nominal voltage, SOT-23 package, and AEC-Q101 qualification. Verify that alternative components meet the same dynamic resistance and leakage current specifications to maintain circuit stability.
