DZ23C3V3-HE3_A-08

Overview

The DZ23C3V3-HE3_A-08 is a silicon planar Zener diode from the Vishay DZ23 series, housed in an SOT-23 surface-mount package. It features a nominal Zener voltage of 3.3 V with a ±5% tolerance and operates at a test current of 5 mA. The device provides a maximum reverse leakage current of 5 µA at 3 V and exhibits a dynamic resistance of 95 Ω at the test current. It is qualified to AEC-Q101 standards for automotive applications and supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• Dual common cathode configuration within a compact SOT-23 footprint
• AEC-Q101 qualification ensuring suitability for automotive environments
• ESD protection capability exceeding 8 kV via human body model

Applications

• Voltage reference circuits requiring stable low-voltage regulation
• Clamping and protection stages in automotive electronic modules
• General-purpose voltage regulation in space-constrained PCB designs

Procurement Notes

Verify that the ordering suffix matches HE3_A-08 to confirm AEC-Q101 automotive qualification. Ensure the component is sourced from authorized channels to guarantee compliance with RoHS directives and material categorization requirements specified by the manufacturer.

Selection Notes

Select this component when a precise 3.3 V reference is required in an automotive context. The SOT-23 package limits power dissipation to 300 mW on standard FR-4 boards; verify thermal constraints before implementation. Consider the specific dynamic resistance value if signal integrity is critical.

Part Context

This part belongs to the DZ23 series of small-signal Zener diodes manufactured by Vishay Semiconductors. The series covers a broad voltage range from 2.2 V to 75 V, utilizing standardized E24 grading. The HE3_A variant specifically denotes the automotive-grade version compliant with AEC-Q101 reliability standards.

Replacement Considerations

Direct replacements include other DZ23 series variants such as DZ23C3V3-E3-08 for commercial grade use. Cross-manufacturer equivalents must be verified against the SOT-23 pinout and electrical tolerances to ensure functional compatibility.