AZ23C3V0-HE3-18

Overview

The AZ23C3V0-HE3-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 surface-mount package. It provides a nominal Zener voltage of 3.0 V with a ±5% tolerance and operates within a temperature range of -55 °C to +150 °C. The device features a maximum power dissipation of 300 mW on an FR-4 board and meets AEC-Q101 automotive qualification standards. Electrical characteristics include a reverse leakage current of 10 μA maximum at 1 V and a dynamic resistance of 95 Ω at a test current of 5 mA.

Feature Summary

• Dual common anode configuration for space-efficient circuit designs
• AEC-Q101 qualified for automotive reliability requirements
• ESD protection exceeding 8 kV via human body model and 800 V via machine model
• RoHS-compliant construction utilizing HE3_A technology

Applications

• Automotive electronic systems requiring robust voltage regulation
• Clamping circuits for transient voltage suppression
• Reference voltage generation in precision analog applications

Procurement Notes

Verify that the ordering code includes the HE3_A suffix to confirm AEC-Q101 automotive qualification status. Ensure the trailing digits indicate the 10,000-unit reel packaging format. Cross-reference the specific part number against the manufacturer's latest obsolescence notices to confirm active production status before finalizing procurement plans.

Selection Notes

Select this component when a dual Zener array with a 3.0 V nominal rating is required in a compact SOT-23 footprint. The ±5% tolerance suits general-purpose regulation tasks where tighter tolerances are unnecessary. Verify that the 300 mW thermal dissipation limit aligns with the expected operating conditions and ambient temperatures of the target application environment.

Part Context

This device belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of graded Zener voltages from 2.2 V to 75 V according to the E24 standard. The HE3 variant specifically denotes RoHS-compliant materials designed for high reliability in demanding environments.

Replacement Considerations

Publicly confirmed substitutes include AZ23C3V0-HE3_A-08 (same electrical specs, different 3,000-unit tape & reel packaging) and AZ23C3V0-E3-18 (commercial grade, lacks AEC-Q101 qualification). Verify pinout compatibility and thermal performance before substituting.