BZX58550-B36-QX

Single Zener Diodes Overview

The Nexperia BZX58550-B36-QX is a low-current voltage regulator diode housed in an SOD523 (SC-79) surface-mounted package. It features a nominal working voltage of 36 V with ±2% tolerance. The device has a total power dissipation of 300 mW and operates within a temperature range of -55 °C to +150 °C. Electrical characteristics include a maximum forward voltage of 0.9 V at 10 mA, a differential resistance of 350 Ω at 50 µA, and a reverse current of 1.2 µA at 5 mA. It is qualified according to AEC-Q101 standards.

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.
• Features intentional minor rise of leakage current for optimized fast switching and noise reduction.
• Qualified according to AEC-Q101 and recommended for use in automotive applications.

Single Zener Diodes Applications

• Low-current general regulation functions

Single Zener Diodes Procurement Notes

Verify the specific suffix QX against official Nexperia documentation to confirm packaging details. Ensure the component meets AEC-Q101 requirements if used in automotive designs. Confirm that the ±2% tolerance series aligns with circuit precision needs. Check for any recent Product Change Notifications regarding marking codes or manufacturing locations before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in space-constrained designs utilizing the SOD523 footprint. The ±2% tolerance offers tighter control compared to standard ±5% variants. Consider the low test current specification for battery-operated systems where minimizing quiescent current is critical. Verify thermal management capabilities given the 300 mW power dissipation limit in small packages.

Single Zener Diodes Part Context

This part belongs to the BZX58550-Q series of low-current voltage regulator diodes from Nexperia. The series provides a comprehensive range of nominal voltages from 1.8 V to 51 V in an ultra-small plastic SMD package. The 'B' designation indicates the ±2% tolerance series, distinguishing it from the 'C' series which offers approximately ±5% tolerance.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include BZX58550-C36-QX, which shares the same package and electrical limits but offers ±5% tolerance instead of ±2%. Other BZX58550-Q variants with different nominal voltages are not electrically interchangeable for this specific application.