DZ23C47-HE3-18

Overview

The Vishay DZ23C47-HE3-18 is a silicon planar Zener diode in the DZ23 series, housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 47 V with a tolerance of ±5 %. The device operates at a test current of 2 mA and dissipates up to 300 mW on an FR-4 board. It features a reverse leakage current of 50 µA maximum and dynamic resistance of 97 Ω. Qualified under AEC-Q101 standards, it supports an operating temperature range from -55 °C to +150 °C.

Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• ESD protection exceeding 8 kV via human body model
• RoHS-compliant construction without halogenated substances

Applications

• Automotive electronic circuit voltage regulation
• General-purpose voltage reference applications
• Overvoltage protection in signal lines

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm AEC-Q101 qualification status. Ensure that the procurement channel sources directly from authorized distributors or the manufacturer to guarantee component authenticity and traceability throughout the supply chain.

Selection Notes

Select this component when a 47 V Zener reference is required within an SOT-23 footprint. Confirm that the 2 mA test current aligns with the target circuit design. Verify thermal management capabilities to ensure power dissipation remains within the specified 300 mW limit on the intended PCB layout.

Part Context

This part belongs to the Vishay DZ23 series of small signal Zener diodes. The series offers various voltage grades according to the E24 standard. The HE3 designation indicates RoHS compliance and AEC-Q101 qualification, distinguishing it from commercial grade variants.

Replacement Considerations

Direct replacements include other Vishay DZ23C47 variants such as DZ23C47-E3-18, though the latter lacks automotive qualification. Cross-manufacturer equivalents must be verified for pinout compatibility and electrical parameter matching.