AZ23B36-HE3_A-18

Overview

The AZ23B36-HE3_A-18 is a dual common anode silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a nominal Zener voltage of 36 V with a tight tolerance of ±2%. The device is AEC-Q101 qualified for automotive applications and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum reverse leakage current of 50 μA at 27 V, a dynamic resistance (ZZ) of 87 Ω at the test current of 2 mA, and a power dissipation rating of 300 mW on an FR-4 board. It is supplied in a compact SOT-23 package.

Feature Summary

• Dual common anode configuration allows for efficient space-saving circuit designs requiring two independent voltage references.
• AEC-Q101 qualification ensures reliability and compliance with stringent automotive industry standards.
• High ESD protection capability exceeding 8 kV via human body model and 800 V via machine model.
• RoHS-compliant manufacturing process suitable for environmentally conscious production lines.

Applications

• Automotive electronic systems requiring robust voltage regulation under varying thermal conditions.
• Precision reference circuits utilizing the dual common anode topology for signal conditioning.
• Protection stages in sensitive electronics benefiting from high electrostatic discharge immunity.

Procurement Notes

Verify that the specific ordering code matches the required tolerance and qualification level. Confirm the suffix indicates the correct reel size and packaging format. Ensure the component meets the necessary environmental and material compliance standards for the intended deployment environment before finalizing acquisition.

Selection Notes

Select this variant when a strict ±2% voltage tolerance is mandatory for the application. The HE3_A suffix denotes AEC-Q101 qualification, which is essential for automotive deployments. Consider the 300 mW power dissipation limit on standard PCBs during thermal design. Verify that the SOT-23 package dimensions fit the available footprint constraints.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes produced by Vishay Semiconductors. The series offers a wide range of standardized Zener voltages graded according to the international E24 standard. The B designation specifically indicates the tighter ±2% tolerance band compared to the C designation.

Replacement Considerations

Direct substitutes within the same family include AZ23B36-E3-18 for commercial grade or AZ23B36-HE3_A-08 for different tape packaging. Cross-manufacturer equivalents must be verified against the specific electrical parameters and package dimensions to ensure functional compatibility.

FAQ

What is the dynamic resistance of the AZ23B36-HE3_A-18?

The dynamic resistance (ZZ) is specified as a maximum of 87 Ω when tested at a current of 2 mA.

Does the AZ23B36-HE3_A-18 meet automotive standards?

Yes, the HE3_A suffix indicates that the device is qualified according to the AEC-Q101 standard for automotive applications.

What is the maximum operating junction temperature?

The maximum operating junction temperature (Tj) is rated at 150 °C.