BZX38450-B39X

Single Zener Diodes Overview

The Nexperia BZX38450-B39X is a low-current voltage regulator diode housed in an SOD323 (SC-76) surface-mount package. It features a nominal Zener voltage of 39 V with ±2% tolerance and a total power dissipation of 300 mW. The device operates within a junction temperature range of -55 °C to +150 °C, with a maximum forward voltage of 0.9 V at 10 mA. Electrical characteristics are specified at a low test current of 50 µA, making it suitable for portable applications.

Single Zener Diodes Feature Summary

• Designed for low bias and portable battery-powered applications through specification at a low test current of 50 µA.
• Includes intentional minor rise of leakage current for optimized fast switching and noise reduction.
• Available in a small SOD323 plastic surface-mounted device package.

Single Zener Diodes Applications

• Low-current general regulation functions

Single Zener Diodes Procurement Notes

Verify the specific suffix 'X' against official Nexperia documentation to confirm packaging details, as standard datasheets may list trailing zeros or different tape-and-reel specifications. Confirm that the component meets all required environmental and quality standards for the intended design application before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component for circuits requiring precise voltage regulation under low-power conditions. The ±2% tolerance series ensures tight voltage accuracy. Ensure the operating environment stays within the specified thermal limits and that the low test current aligns with the circuit's biasing requirements.

Single Zener Diodes Part Context

This part belongs to the BZX38450 series of low-current voltage regulator diodes. The series offers working voltages from 1.8 V to 51 V in two tolerance variants: ±2% and approximately ±5%. These devices are engineered for compact designs where space and low power consumption are critical constraints.

Single Zener Diodes Replacement Considerations

BZX38450-C39

Single Zener Diodes FAQ

What is the differential resistance of the BZX38450-B39?

The differential resistance is 350 Ω at IZ = 50 µA and 130 Ω at IZ = 2 mA.

Does the BZX38450-B39 have automotive qualification?

No, unless explicitly stated otherwise in specific product data, these products are not automotive qualified and are not tested according to automotive requirements.