AZ23C4V3-HE3_A-08

Overview

The AZ23C4V3-HE3_A-08 is a silicon planar Zener diode array from the AZ23 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration within a SOT-23 package. The nominal Zener voltage is 4.3 V with a tolerance of ±5 %. Electrical characteristics include a test current of 5 mA, a maximum reverse leakage current of 3 μA at 3 V, and a dynamic resistance of 90 Ω at 1 mA. The device is AEC-Q101 qualified for automotive applications, operates within a temperature range of -55 °C to +150 °C, and has a power dissipation rating of 300 mW on an FR-4 board.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• AEC-Q101 qualification ensuring reliability in automotive environments
• ESD protection capability exceeding 8 kV (HBM) and 800 V (MM)
• RoHS-compliant construction using lead-free materials

Applications

• Automotive voltage regulation circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in signal conditioning systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the ordering suffix matches the required AEC-Q101 qualification and tape-and-reel packaging specifications. Ensure compliance with RoHS directives and material categorization requirements before integration into production workflows.

Selection Notes

Select this variant when a dual common anode topology is required alongside strict automotive reliability standards. The ±5 % tolerance suits general-purpose regulation where tighter precision is unnecessary. Evaluate thermal management needs based on the 300 mW dissipation limit on standard PCB footprints.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes offered by Vishay Semiconductors. The series provides a wide range of standardized Zener voltages from 2.2 V to 75 V. The HE3_A suffix specifically denotes the AEC-Q101 qualified, RoHS-compliant version packaged in taped units for automated surface-mount assembly.

Replacement Considerations

AZ23C4V3-E3-08: Commercial grade equivalent without automotive qualification. AZ23B4V3-HE3_A-08: Automotive grade equivalent with tighter ±2 % voltage tolerance.