AZ23C30-HE3-18

Overview

The AZ23C30-HE3-18 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 surface-mount package. The nominal Zener voltage is 30 V with a ±5% tolerance. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 0.05 µA at 27 V, and a dynamic resistance of 80 Ω at 2 mA. The device supports a maximum power dissipation of 300 mW on an FR-4 board and operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode circuit configuration for space-efficient designs
• ESD protection capability exceeding 8 kV via human body model
• Automotive-grade qualification under AEC-Q101 standards

Applications

• Voltage reference circuits in automotive electronics
• Transient voltage suppression in compact PCB layouts
• Overvoltage protection for signal lines

Procurement Notes

Verify that the ordering suffix matches the required tape and reel specifications. Confirm the HE3_A designation aligns with AEC-Q101 automotive qualification requirements. Ensure the component status is active before finalizing procurement plans.

Selection Notes

Select this part when a 30 V Zener voltage with ±5% tolerance is required in a small SOT-23 footprint. Consider the dual common anode structure if bidirectional clamping or specific logic interfacing is needed. Verify thermal management capabilities against the 300 mW dissipation limit on standard FR-4 substrates.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes. The series offers various voltage grades according to the E24 standard. The base product number is AZ23C30, with the HE3_A suffix indicating RoHS compliance and automotive qualification, while the -18 suffix specifies the 10,000 units per reel packaging format.

Replacement Considerations

Publicly confirmed substitutes include AZ23C30-E3-18 and AZ23C30-G3-18. These alternatives share identical electrical parameters but differ in manufacturing process or qualification level.