DZ23C20-HE3_A-08

Overview

The DZ23C20-HE3_A-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 20 V with a standard tolerance of ±5 %. The device operates at a test current of 5 mA and features a maximum reverse leakage current of 0.05 µA at 17 V. Dynamic resistance is specified at 50 Ω (at IZT1) and 220 Ω (at IZT2). It supports a power dissipation of up to 500 mW and functions within a temperature range of -55 °C to +150 °C.

Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• ESD protection exceeding 8 kV via human body model
• RoHS-compliant construction without halogenated substances

Applications

• Voltage reference circuits requiring stable bias points
• Overvoltage protection stages in signal conditioning paths
• Clamping applications in automotive electronic modules

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer's document number 86346 and revision level 1.2 against official Vishay records. Confirm that the HE3_A suffix corresponds to AEC-Q101 qualification status as defined in the ordering information table. Ensure packaging specifications match the required reel dimensions for automated assembly processes.

Selection Notes

Select this component when a 20 V regulation point is required in space-constrained designs utilizing the SOT-23 footprint. Evaluate thermal management requirements based on the 250 K/W junction-to-lead resistance value. Consider the specific dynamic resistance characteristics for high-frequency noise sensitivity in precision analog front ends.

Part Context

This part belongs to the DZ23 family of small signal Zener diodes manufactured by Vishay Semiconductors. The series encompasses various voltage grades aligned with the E24 standard. The HE3_A variant specifically denotes compliance with automotive environmental and quality standards, distinguishing it from commercial grade equivalents.

Replacement Considerations

Direct substitutes include other DZ23C20 variants such as DZ23C20-E3-08 or DZ23C20-HE3_A-18, provided the packaging format aligns with manufacturing capabilities. Verify that alternative sources maintain identical electrical tolerances and AEC-Q101 certification if automotive deployment is intended.