AZ23B3V9-HE3-08

Overview

The AZ23B3V9-HE3-08 is a dual common anode silicon planar Zener diode array from Vishay Semiconductors, housed in a SOT-23 surface-mount package. It features a nominal Zener voltage of 3.9 V with a tight ±2 % tolerance and a maximum reverse leakage current of 1 μA at 1 V. The device has a dynamic resistance of 90 Ω at a test current of 5 mA and operates within a temperature range of -55 °C to +150 °C. It is AEC-Q101 qualified for automotive applications and provides high ESD protection exceeding 8 kV via the human body model.

Feature Summary

• Dual common anode configuration integrating two Zener diodes into a single compact SOT-23 package.
• AEC-Q101 qualification ensuring compliance with rigorous automotive electronic component standards.
• High electrostatic discharge robustness exceeding 8 kV under the human body model and 800 V under the machine model.
• Tight voltage tolerance of ±2 % achieved through precise grading according to international E24 standards.

Applications

• Automotive circuitry requiring AEC-Q101 compliant voltage reference components.
• Dual-channel voltage clamping and protection in space-constrained surface-mount designs.
• Precision signal conditioning where low leakage and stable voltage regulation are required.

Procurement Notes

Verify that the ordering code strictly matches AZ23B3V9-HE3-08 to ensure correct tolerance and qualification. Confirm RoHS compliance and material categorization status against the latest Vishay documentation before finalizing procurement specifications.

Selection Notes

Select this part when a dual common anode topology is necessary alongside strict ±2 % voltage accuracy. Ensure the application environment remains within the specified -55 °C to +150 °C operating range and accounts for the 300 mW power dissipation limit on standard FR-4 boards.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers various voltage options and tolerances, with the 'B' suffix denoting the tighter ±2 % specification and the 'HE3' indicating an eco-friendly lead-free finish with tin (Sn) terminations.

Replacement Considerations

AZ23B3V9-HE3_A-08

FAQ

What is the specific marking code for the AZ23B3V9-HE3-08?

The marking code for the AZ23B3V9-HE3-08 is DD5.

How does the HE3 suffix affect the physical construction compared to the base P/N?

The HE3 suffix indicates that the device utilizes an eco-friendly plating system with fully matte tin (Sn) terminations, whereas the base P/N-E3 uses a different compliant finish.

What is the maximum reverse leakage current specified for this device?

The maximum reverse leakage current is specified as 1 μA when measured at a reverse voltage of 1 V.