AZ23C20-HE3-08

Overview

The AZ23C20-HE3-08 is a dual common anode small signal Zener diode array manufactured by Vishay Semiconductors. It features a nominal Zener voltage of 20 V with a tolerance of ±5%. The device operates within a test current range of 2 mA to 5 mA and exhibits a maximum reverse leakage current of 0.05 µA at a reverse voltage of 15 V. Dynamic resistance is specified at 50 Ω (at IZT1) and 220 Ω (at IZT2). It is housed in a SOT-23 package, supports a junction temperature up to 150 °C, and carries AEC-Q101 qualification.

Feature Summary

• Dual common anode configuration for space-efficient circuit design
• AEC-Q101 qualified for automotive reliability standards
• ESD protection capability exceeding 8 kV human body model
• RoHS-compliant HE3_A lead-free construction

Applications

• Automotive electronic circuits requiring voltage reference stability
• General-purpose voltage regulation in compact surface-mount designs
• Protection against electrostatic discharge in sensitive signal lines

Procurement Notes

Verify the specific ordering suffix 'HE3_A' confirms AEC-Q101 automotive qualification status. Confirm that the 'C' designation strictly indicates the required ±5% voltage tolerance for the target application. Ensure the SOT-23 package dimensions align with the PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a dual common anode topology is required to minimize board space. The ±5% tolerance suits applications where tight voltage precision is not critical. Verify that the 300 mW power dissipation rating on an FR-4 board meets the thermal requirements of the intended operating environment.

Part Context

This part belongs to the AZ23 series of silicon planar Zener diodes from Vishay. The series offers a wide Zener voltage range from 2.2 V to 75 V. The 'HE3_A' suffix specifically denotes the RoHS-compliant, AEC-Q101 qualified variant packaged in taped reels for automated assembly processes.

Replacement Considerations

AZ23C20-E3-08: Commercial grade version without AEC-Q101 qualification.