BZX8850S-B43-QYL

Single Zener Diodes Overview

The Nexperia BZX8850S-B43-QYL is a low-current voltage regulator diode in the BZX8850S-Q series, housed in an ultra-small SOD882BD (DFN1006BD-2) leadless surface-mounted package with side-wettable flanks. It features a nominal working voltage of 43 V with a ±2% tolerance series designation. The device is specified at a low test current of 50 µA, making it suitable for low bias and portable battery-powered applications. Key electrical parameters include a total power dissipation of ≤ 365 mW, a maximum forward voltage of 0.9 V at 10 mA, and a junction temperature range of -55 °C to +150 °C. It is qualified according to AEC-Q101 standards.

Single Zener Diodes Feature Summary

• Ultra-small leadless plastic package with side-wettable flanks suitable for surface-mounted design
• Qualified according to AEC-Q101 and recommended for use in automotive applications
• Specified at a low test current ideal for low bias and portable battery-powered applications

Single Zener Diodes Applications

• Low-current general regulation functions
• Automotive applications requiring AEC-Q101 qualification

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix matches the required tolerance series and packaging configuration. Confirm that the DFN1006BD-2 footprint aligns with the PCB layout guidelines provided in the datasheet. Ensure design compliance with the absolute maximum ratings to prevent permanent damage during operation or surge conditions.

Single Zener Diodes Selection Notes

Select this component for designs requiring precise voltage regulation in space-constrained environments. The low test current specification makes it appropriate for battery-operated devices where minimizing quiescent current is critical. Verify thermal management requirements against the total power dissipation limits under expected ambient conditions.

Single Zener Diodes Part Context

This part belongs to the BZX8850S-Q series of low-current voltage regulator diodes manufactured by Nexperia. The series offers a wide working voltage range from nominal 1.8 V to 51 V. The BZX8850S-B43-QYL specifically represents the 43 V variant within the ±2% tolerance sub-series, designed for high-precision applications in compact electronic systems.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include other BZX8850S-Q variants with different voltage ratings but identical package and qualification profiles. Cross-referencing with the BZX8850 series may be necessary if package variations are acceptable, though the SOD882BD footprint is distinct.