BZX8450-C39VL

Single Zener Diodes Overview

The Nexperia BZX8450-C39VL is a low-current voltage regulator diode housed in an SOT23 surface-mount package. It features a nominal Zener voltage of 39 V with a tolerance range of 37.05 V to 40.95 V at IZ = 50 µA. The device has a total power dissipation of 250 mW and operates within a junction temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum reverse current of 41.2 µA at IZ = 5 mA, a differential resistance of 130 Ω, and a diode capacitance of 45 pF at 1 MHz.

Single Zener Diodes Feature Summary

• Designed for low bias and portable battery-powered applications due to 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 SOT23 plastic surface-mounted package suitable for space-constrained designs.

Single Zener Diodes Applications

• Low-current general regulation functions
• Portable battery-powered applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'VL' against official Nexperia documentation to confirm packaging details such as reel size or tape width, as datasheets may not explicitly define all logistics suffixes. Ensure the component matches the standard BZX8450-C39 electrical specifications provided in the product data sheet before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component for circuits requiring precise low-current voltage regulation where minimal quiescent current is critical. The C-series tolerance provides approximately ±5% accuracy, suitable for general-purpose regulation. Consider the thermal resistance and power dissipation limits when designing PCB layouts to ensure reliable operation under varying ambient temperatures.

Single Zener Diodes Part Context

This part belongs to the Nexperia BZX8450 series of low-current voltage regulator diodes. The series offers working voltages from 1.8 V to 51 V in two tolerance variants: ±2% (B-selection) and approximately ±5% (C-selection). All devices are specified at a low test current of 50 µA, distinguishing them from standard Zener diodes that typically operate at higher currents.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include BZX8450-B39 for tighter tolerance requirements. Other Nexperia Zener diodes in similar packages, such as the BZX84 or BZX884 series, may serve as alternatives if electrical parameters like power dissipation and voltage range are compatible with the design constraints.

Single Zener Diodes FAQ

What is the test current used to specify the Zener voltage for the BZX8450-C39?

The Zener voltage is specified at a low test current of 50 µA, making it ideal for low-bias applications.

Does the BZX8450-C39 have any special leakage current characteristics?

Yes, the BZX8450-C39 features an intentional minor rise in leakage current designed to optimize fast switching and reduce noise.