AZ23B13-HE3-18

Overview

The AZ23B13-HE3-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a common anode configuration with two integrated diodes housed in a SOT-23 surface-mount package. The nominal Zener voltage is 13 V, maintained within a tight ±2% tolerance band (12.74 V to 13.26 V) at a test current of 5 mA. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates across a temperature range of -55°C to +150°C. It is AEC-Q101 qualified for automotive reliability and complies with RoHS standards.

Feature Summary

• Dual Zener diodes integrated into a single common anode structure for space-efficient circuit design
• AEC-Q101 qualification ensuring suitability for demanding automotive electronic environments
• High electrostatic discharge protection capability exceeding 8 kV via human body model testing

Applications

• Automotive-grade voltage reference circuits requiring dual regulated rails
• ESD protection networks in high-reliability consumer electronics
• Precision clamping applications in industrial control systems

Procurement Notes

Verify the specific HE3_A suffix indicates AEC-Q101 automotive qualification status. Confirm the -18 tape and reel packaging specification matches automated assembly requirements. Ensure the component meets RoHS3 compliance standards for the target market. Validate that the ordering code corresponds exactly to the required 13 V nominal voltage and ±2% tolerance class.

Selection Notes

Select this variant when a precise 13 V reference is needed alongside a secondary regulation path in a compact footprint. The ±2% tolerance offers tighter accuracy than standard commercial grades. Consider the common anode topology for simplified biasing compared to discrete components. Verify thermal management capabilities align with the 300 mW dissipation limit under expected operating conditions.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes from Vishay. The series utilizes silicon planar technology and covers a wide voltage range from 2.2 V to 75 V. The AZ23B13-HE3-18 specifically represents the 13 V step with high precision tolerance and automotive qualification, distinguishing it from lower-cost commercial variants.

Replacement Considerations

AZ23B13-E3-18 provides equivalent electrical performance but lacks AEC-Q101 automotive qualification. AZ23C13-HE3-18 offers the same automotive grade but with a wider ±5% voltage tolerance.