BZX384C3V9-HE3-08

Single Zener Diodes Overview

The BZX384C3V9-HE3-08 is a silicon planar power Zener diode manufactured by Vishay Semiconductors. It provides a nominal Zener voltage of 3.9 V with a standard tolerance of ±5%. The device is housed in an SOD-323 (SC-76) surface-mount package and supports a maximum power dissipation of 200 mW. It features a low reverse leakage current of 3 µA and a dynamic impedance of 85 Ohms at the test current. The component operates within a temperature range of -55°C to +150°C and holds AEC-Q101 qualification for automotive applications.

Single Zener Diodes Feature Summary

• Encapsulated in a compact SOD-323 plastic surface-mount package for space-constrained designs.
• Qualified for automotive electronics under the AEC-Q101 reliability standard.
• Lead-free construction compliant with RoHS directives.

Single Zener Diodes Applications

• General voltage regulation functions in electronic circuits.
• Reference voltage sources for analog signal processing.
• Overvoltage protection stages in automotive modules.

Single Zener Diodes Procurement Notes

Verify the specific suffix against official datasheets, as packaging codes like HE3-08 indicate reel quantities that may differ from other variants. Confirm AEC-Q101 status directly with the manufacturer or authorized distributors, as this qualification is critical for automotive supply chains. Ensure the requested tolerance matches the 'C' designation for ±5% rather than the tighter 'B' grade.

Single Zener Diodes Selection Notes

Select this component when a small form factor is required alongside automotive-grade reliability. The 3.9 V output suits low-voltage reference needs where ±5% precision is acceptable. Consider the thermal resistance and power derating curves if operating near the upper temperature limits. Verify compatibility with automated pick-and-place equipment due to the SOD-323 footprint dimensions.

Single Zener Diodes Part Context

This part belongs to the BZX384-V-Series of small-signal Zener diodes. The series offers normalized E24 voltage values ranging from 2.4 V to 75 V. The 'C' suffix denotes the standard ±5% tolerance grade, while the 'HE3' indicates lead-free termination. The family is designed for general-purpose regulation in consumer and industrial electronics.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires matching the SOD-323 package, 3.9 V nominal voltage, ±5% tolerance, and 200 mW power rating. Verify electrical characteristics and automotive qualification independently before substitution.