AZ23C36-HE3_A-18

Overview

The AZ23C36-HE3_A-18 is a dual common anode silicon planar Zener diode array from Vishay, designed for surface-mount applications in the SOT-23 package. It features a nominal Zener voltage of 36 V with a standard tolerance of ±5%. The device is AEC-Q101 qualified and RoHS-compliant. Electrical characteristics include a maximum reverse leakage current of 50 μA at 27 V and a dynamic resistance of 87 Ω at a test current of 2 mA. The component supports a power dissipation of up to 500 mW and operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration providing two independent Zener channels in a single compact package.
• AEC-Q101 automotive qualification ensuring reliability under rigorous environmental and operational stress conditions.
• ESD protection capability exceeding 8 kV via human body model and 800 V via machine model standards.

Applications

• Automotive electronic systems requiring robust overvoltage protection and voltage reference stability.
• Clamping circuits for safeguarding sensitive signal lines against transient voltage spikes.
• Voltage regulation tasks in low-power consumer electronics utilizing space-constrained PCB layouts.

Procurement Notes

Verify that the specific ordering code matches the required AEC-Q101 qualification status and tape-and-reel packaging format. Confirm compliance with RoHS directives and material categorization requirements before finalizing procurement orders. Ensure storage and handling procedures adhere to moisture sensitivity level 1 guidelines to prevent package damage during assembly processes.

Selection Notes

Select this component when a dual-channel Zener solution with automotive-grade reliability is necessary. The common anode topology simplifies circuit design by sharing a single ground reference point. Verify that the 36 V nominal breakdown voltage aligns with the target clamping or reference requirements. Consider the thermal resistance values when designing heat dissipation strategies for high-density board layouts.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standardized Zener voltages from 2.2 V to 75 V. Variants are available with different tolerances and packaging options to suit diverse commercial and industrial application needs.

Replacement Considerations

Direct replacements must maintain the SOT-23-3 footprint and dual common anode configuration. Verify that substitute parts meet or exceed the 36 V Zener voltage, ±5% tolerance, and AEC-Q101 qualification standards. Cross-reference dynamic resistance and leakage current specifications to ensure equivalent circuit performance.