BZX384B9V1-HE3-18

Single Zener Diodes Overview

The BZX384B9V1-HE3-18 is a silicon planar power Zener diode manufactured by Vishay General Semiconductor - Diodes Division. It provides a nominal Zener voltage of 9.1 V with a tight tolerance of ±2%, designated by the 'B' suffix in the part number. The device is housed in an SOD-323 (SC-76) surface-mount package and supports a maximum power dissipation of 200 mW at 25 °C ambient temperature. It operates within a junction temperature range up to 150 °C and is qualified for automotive applications under AEC-Q101 standards.

Single Zener Diodes Feature Summary

• High-precision voltage regulation with ±2% tolerance for stable reference applications
• Automotive-grade reliability certified to AEC-Q101 standards
• Compact SOD-323 surface-mount package for space-constrained designs
• Lead-free construction compliant with RoHS directives

Single Zener Diodes Applications

• General voltage regulation functions in electronic circuits
• Voltage reference sources in precision measurement systems
• Over-voltage protection stages in automotive electronics

Single Zener Diodes Procurement Notes

Verify the specific suffix HE3-18 to confirm the reel packaging quantity and lead-free status. Ensure the design accounts for the 200 mW power dissipation limit and thermal resistance characteristics. Confirm AEC-Q101 qualification requirements if deploying in automotive environments. Cross-reference the exact part number against manufacturer datasheets to validate electrical parameters before integration.

Single Zener Diodes Selection Notes

Select this component when a precise 9.1 V reference with ±2% accuracy is required in a small form factor. The B-series designation indicates tighter tolerance compared to C-series variants. Consider the SOD-323 package dimensions for PCB layout constraints. Verify that the operating current remains within specified limits to maintain regulation accuracy and prevent excessive power dissipation.

Single Zener Diodes Part Context

This component belongs to the BZX384-V-Series, a family of low-power voltage regulator diodes encapsulated in the SOD323 plastic SMD package. The series offers normalized E24 standard voltages ranging from 2.4 V to 75 V. The BZX384-B variants specifically provide ±2% tolerance, distinguishing them from the standard ±5% C-series devices within the same product line.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other Vishay BZX384B9V1 variants with different packaging codes, such as BZX384B9V1-E3-18 or BZX384B9V1-G3-18, provided the electrical specifications and package type remain identical.