AZ23C22-HE3_A-08

Overview

The AZ23C22-HE3_A-08 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 22 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -55 °C to +150 °C and supports a maximum power dissipation of 500 mW when mounted on an FR-4 board. Key electrical parameters include a reverse leakage current of 50 μA at 17 V and a dynamic resistance of 55 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 standards
• ESD protection capability exceeding 8 kV via human body model

Applications

• Automotive electronic circuits requiring AEC-Q101 compliance
• Voltage reference applications utilizing dual independent channels
• General-purpose signal conditioning and protection networks

Procurement Notes

Verify that the ordering code includes the HE3_A suffix to confirm AEC-Q101 qualification status. Ensure the final two digits indicate the correct reel size (08 for 3000 units or 18 for 10000 units). Confirm RoHS compliance requirements match the specific manufacturing batch documentation provided by the supplier.

Selection Notes

Select this component when dual isolated voltage references are required in a compact SOT-23 footprint. The ±5% tolerance suits general regulation tasks where tighter precision is unnecessary. Verify that the 500 mW thermal rating aligns with the expected ambient operating conditions and PCB copper area available for heat dissipation.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers various voltage grades based on the E24 standard. The HE3_A designation specifically denotes the automotive-grade variant within the broader AZ23 product family.

Replacement Considerations

AZ23C22-E3-08: Commercial grade equivalent without AEC-Q101 qualification. AZ23B22-HE3_A-08: Automotive grade alternative with tighter ±2% voltage tolerance.