AZ23B47-HE3_A-08

Overview

The AZ23B47-HE3_A-08 is a silicon planar Zener diode from the AZ23 series, manufactured by Vishay Semiconductors. It features a dual common anode configuration within an SOT-23 package. The nominal Zener voltage is 47 V with a tolerance of ±2%. Electrical characteristics include a test current of 2 mA, a maximum reverse leakage current of 50 µA at 35 V, and a dynamic resistance of 97 Ω at 1 kHz. The device operates within a temperature range of -55 °C to +150 °C and supports a power dissipation of up to 500 mW.

Feature Summary

• Dual common anode circuit configuration for efficient space utilization
• AEC-Q101 qualified for automotive electronics reliability
• ESD protection capability exceeding 8 kV via human body model

Applications

• Automotive electronic circuits requiring AEC-Q101 compliance
• Voltage reference applications in compact surface-mount designs
• Clamping and protection circuits utilizing dual-diode topology

Procurement Notes

Verify the specific ordering code against official documentation to confirm the component meets all required electrical tolerances and qualification standards. Ensure that the procurement channel provides valid traceability for the HE3_A suffix, which denotes RoHS compliance and AEC-Q101 qualification. Cross-reference the manufacturer's latest datasheet revision to confirm availability and any potential updates to the product specifications before finalizing orders.

Selection Notes

Select this component when a dual common anode Zener diode is required for voltage regulation or clamping in automotive environments. The ±2% voltage tolerance offers tighter precision compared to standard commercial grades. Consider the SOT-23 package dimensions and thermal characteristics to ensure compatibility with the target printed circuit board layout and heat dissipation requirements.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes produced by Vishay Semiconductors. The series encompasses various voltage ratings graded according to the international E24 standard. The AZ23B47-HE3_A-08 specifically represents the 47 V variant with high-precision tolerance and automotive-grade qualification, distinguishing it from non-qualified or wider-tolerance counterparts within the same family.

Replacement Considerations

Direct substitutes within the AZ23 series include other voltage variants such as AZ23B43-HE3_A-08 or AZ23B51-HE3_A-08 if different voltage levels are needed. For equivalent performance in terms of package and qualification, verify cross-references with other manufacturers offering AEC-Q101 qualified dual common anode Zener diodes in SOT-23 packages.