BZX384B39-HE3-18

Single Zener Diodes Overview

The BZX384B39-HE3-18 is a silicon planar power Zener diode manufactured by Vishay Semiconductors. It provides a nominal Zener voltage of 39 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. It operates within a temperature range of -55°C to +150°C junction temperature. The component is lead-free, compliant with RoHS directives, and utilizes the HE3 technology for enhanced thermal performance.

Single Zener Diodes Feature Summary

• Utilizes HE3 technology for superior thermal management and reliability compared to standard options.
• Offers high precision voltage regulation with a strict ±2% tolerance on the Zener voltage.
• Encapsulated in a compact SOD-323 plastic case suitable for automated surface-mount assembly.

Single Zener Diodes Applications

• General voltage regulation functions in electronic circuits.
• Reference voltage sources requiring stable low-power operation.
• Protection circuits utilizing precise clamping voltages.

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm availability and exact electrical parameters. Ensure that the selected variant matches the required tolerance and packaging format for the intended production line. Cross-reference the datasheet revision date to guarantee compliance with current environmental standards and material declarations before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 39 V reference is required in a space-constrained design. The ±2% tolerance makes it suitable for applications demanding tighter voltage accuracy than standard ±5% devices. Consider the SOD-323 footprint constraints and the 200 mW power dissipation limit during thermal analysis to ensure reliable operation under maximum load conditions.

Single Zener Diodes Part Context

This device belongs to the BZX384-V-Series of small signal Zener diodes from Vishay. The series offers normalized E24 voltage values ranging from 2.4 V to 75 V. The 'B' designation indicates the ±2% tolerance grade, while 'C' denotes ±5%. The HE3 suffix signifies the use of Vishay's advanced Green Molding Compound for improved heat dissipation and environmental compliance.

Single Zener Diodes Replacement Considerations

Direct substitutes include other Vishay BZX384 variants with matching voltage and tolerance, such as BZX384B39-E3-18 or BZX384B39-G3-18. Verify that alternative packages maintain the same pinout and thermal characteristics to ensure seamless integration without circuit redesign.