AZ23B62-HE3_A-18

Overview

The Vishay AZ23B62-HE3_A-18 is a dual common anode silicon planar Zener diode array housed in an SOT-23 package. It features a nominal Zener voltage of 62 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum reverse leakage current of 50 μA at 46.5 V, a dynamic resistance (ZZ) of 150 Ω at the test current of 2 mA, and a power dissipation rating of 300 mW on an FR-4 board.

Feature Summary

• Dual common anode configuration providing two independent Zener references in a single compact surface-mount package.
• AEC-Q101 qualification ensuring reliability and compliance with stringent automotive electronic component standards.
• High electrostatic discharge (ESD) protection capability exceeding 8 kV via human body model and 800 V via machine model.

Applications

• Automotive circuitry requiring precise voltage reference or clamping functions under strict environmental conditions.
• Protection of sensitive input lines against overvoltage transients in industrial control systems.
• Biasing networks in precision analog signal processing circuits where stable voltage regulation is critical.

Procurement Notes

Verify that the ordering code matches the specific suffix requirements for automotive grade qualification and tape-and-reel packaging quantity. Confirm RoHS compliance status and material categorization details directly from the manufacturer's documentation prior to finalizing procurement orders to ensure adherence to project specifications.

Selection Notes

Select this component when a dual Zener configuration with high voltage accuracy is required in a small footprint. Ensure the operating current remains within the specified test limits to maintain the ±2% tolerance. Consider the thermal resistance values when designing PCB layouts to prevent overheating during continuous operation.

Part Context

This part belongs to the Vishay AZ23 series of small signal Zener diodes, which offers a wide range of standardized voltage options graded according to the E24 standard. The series provides both commercial and automotive grades, allowing designers to choose between different tolerance levels and qualification standards based on application needs.

Replacement Considerations

Direct replacements must match the dual common anode configuration, 62 V nominal voltage, and ±2% tolerance. Verify that any substitute component meets the same AEC-Q101 qualification and SOT-23 package dimensions to ensure mechanical and electrical compatibility without redesigning the printed circuit board.

FAQ

What is the dynamic resistance of the AZ23B62-HE3_A-18?

The dynamic resistance (ZZ) is specified as a maximum of 150 Ω when tested at a current of 2 mA.

Is the AZ23B62-HE3_A-18 suitable for harsh automotive environments?

Yes, it is AEC-Q101 qualified and rated for an operating temperature range from -55 °C to +150 °C.

How does the HE3_A suffix affect the component's properties?

The HE3_A suffix indicates that the device is RoHS-compliant and qualified to the AEC-Q101 automotive standard.