AZ23C11-HE3_A-18

Overview

The AZ23C11-HE3_A-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a surface-mount SOT-23 package. It features a nominal Zener voltage of 11 V with a standard tolerance of ±5%. The device is AEC-Q101 qualified for automotive applications and RoHS compliant. Electrical characteristics include a maximum reverse leakage current of 0.1 µA at 8.5 V and a dynamic resistance of 20 Ω at a test current of 5 mA. The component supports an operating temperature range from -55 °C to +150 °C and offers ESD protection exceeding 8 kV via the human body model.

Feature Summary

• Dual common anode configuration integrating two Zener elements within a single three-terminal SOT-23 package.
• Automotive-grade qualification under AEC-Q101 standards ensuring reliability for demanding environments.
• High electrostatic discharge robustness providing superior circuit protection against transient events.

Applications

• Voltage reference circuits requiring stable dual supply rails.
• Clamping and protection stages in automotive electronic control units.
• Overvoltage suppression networks in industrial signal conditioning systems.

Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging dimensions. Confirm that the HE3_A designation aligns with project requirements for AEC-Q101 automotive qualification. Ensure compliance with RoHS directives before finalizing procurement specifications.

Selection Notes

Select this variant when a dual common anode topology is necessary for space-constrained designs. The HE3_A suffix indicates AEC-Q101 qualification, which is mandatory for automotive deployments. Verify that the 11 V nominal voltage and ±5% tolerance meet the specific circuit design constraints.

Part Context

This component belongs to the Vishay AZ23 series of small signal Zener diodes. The series provides a wide range of standardized voltage options graded according to the international E24 standard. The AZ23C11 specifically targets applications requiring precise dual-channel voltage regulation or protection within compact surface-mount footprints.

Replacement Considerations

Direct functional equivalents within the same family include the AZ23C11-E3-18 (commercial grade) and AZ23C11-G3-18. For automotive applications requiring identical qualification, verify availability of other manufacturers' AEC-Q101 qualified SOT-23 dual Zener arrays with matching electrical parameters.

FAQ

What does the 'C' indicate in the part number AZ23C11?

The letter 'C' denotes a standard Zener voltage tolerance of ±5%, as defined by the international E24 grading standard.

Is the AZ23C11-HE3_A-18 suitable for automotive applications?

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

What is the maximum reverse leakage current for this device?

The maximum reverse leakage current is specified as 0.1 µA when measured at a reverse voltage of 8.5 V.