DZ23C5V1-HE3-08

Overview

The DZ23C5V1-HE3-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 5.1 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and provides a maximum reverse leakage current of 1 µA at 1 V. Dynamic resistance is specified at 60 Ω under these conditions. 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 configurations.

Feature Summary

• Dual qualification options available: commercial grade (E3 suffix) and AEC-Q101 qualified automotive grade (HE3_A suffix)
• Integrated electrostatic discharge protection rated above 8 kV human body model and 800 V machine model
• Standardized Zener voltage grading aligned with international E24 series specifications

Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Overvoltage protection stages in automotive electronic control units
• Clamping applications in signal conditioning pathways

Procurement Notes

Verify the specific ordering suffix to confirm compliance requirements. The HE3_A suffix indicates AEC-Q101 qualification, whereas the base E3 suffix denotes commercial grade. Confirm tape and reel dimensions match production equipment before procurement. Ensure the requested quantity aligns with minimum order quantities defined by the manufacturer's packaging standards.

Selection Notes

Select this component when a 5.1 V reference point is required within a compact surface-mount footprint. Evaluate thermal constraints carefully, as power dissipation drops significantly as ambient temperature rises above 25 °C. Verify that the dynamic impedance characteristics meet the noise sensitivity requirements of the target circuit design.

Part Context

This part belongs to the Vishay DZ23 series of small signal Zener diodes. The series spans a wide voltage range from 2.2 V to 75 V, all utilizing the same SOT-23 physical form factor. This allows designers to maintain consistent board layouts across different voltage reference designs while varying only the component value.

Replacement Considerations

Direct replacements must share the SOT-23 package and 5.1 V nominal voltage. Automotive-grade equivalents require explicit AEC-Q101 certification. Verify that substitute components offer comparable dynamic resistance and leakage current specifications to ensure circuit stability.