AZ23B9V1-HE3-18

Overview

The AZ23B9V1-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 housed in a SOT-23 surface-mount package. The nominal Zener voltage is 9.1 V with a tight tolerance of ±2%. Electrical characteristics include a maximum reverse leakage current of 0.1 µA at 7 V and a dynamic resistance of 10 Ω at a test current of 5 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 configuration for space-efficient circuit design
• High precision ±2% Zener voltage tolerance
• AEC-Q101 qualified for automotive reliability standards
• ESD protection exceeding 8 kV (HBM) and 800 V (MM)

Applications

• Automotive electronic circuits requiring AEC-Q101 compliance
• Precision voltage reference applications
• Over-voltage protection in sensitive signal lines

Procurement Notes

Verify that the ordering code matches AZ23B9V1-HE3-18 exactly. Confirm the suffix indicates the HE3_A variant for AEC-Q101 qualification and the -18 suffix for 10,000 units per reel packaging. Ensure RoHS3 compliance requirements are met before finalizing procurement orders.

Selection Notes

Select this component when a dual common anode Zener array with high voltage accuracy is required. The ±2% tolerance distinguishes it from standard ±5% variants. Verify that the 300 mW power dissipation rating on FR-4 boards meets the thermal requirements of the target application environment.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes. The 'B' designation specifies the tighter ±2% voltage tolerance compared to the 'C' grade. The 'HE3' prefix denotes the lead-free and halogen-free compliant version, while the '-18' suffix identifies the specific tape and reel quantity configuration.

Replacement Considerations

AZ23B9V1-E3-18 offers identical electrical performance but lacks AEC-Q101 automotive qualification. AZ23C9V1-HE3-18 provides the same package and qualification but has a wider ±5% voltage tolerance.