BZT5250H-B51-QX

Single Zener Diodes Overview

The Nexperia BZT5250H-B51-QX is a low-current voltage regulator diode from the BZT5250H-Q series, housed in an SOD123F surface-mounted plastic package. It features a nominal working voltage of 51 V with a ±2% tolerance (Series B). The device is specified at a low test current of 50 µA, making it suitable for low bias and portable battery-powered applications. It offers a total power dissipation of up to 830 mW and is qualified according to AEC-Q101 standards.

Single Zener Diodes Feature Summary

• Qualified according to AEC-Q101 for automotive applications
• Specified at a low test current of 50 µA for low bias operation
• Intentional minor rise of leakage current for optimized fast switching and noise reduction

Single Zener Diodes Applications

• Low-current general regulation functions
• Portable battery-powered applications
• Automotive electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix 'QX' against the manufacturer's official documentation to confirm tape-and-reel packaging details. Ensure the design accounts for the AEC-Q101 qualification requirements if used in automotive contexts. Confirm that the SOD123F footprint matches the recommended reflow soldering guidelines provided in the datasheet.

Single Zener Diodes Selection Notes

Select this component when a precise 51 V reference is required with tight ±2% tolerance. The low test current specification makes it appropriate for energy-efficient designs where minimal quiescent current is critical. Consider the thermal resistance characteristics if operating near maximum power dissipation limits.

Single Zener Diodes Part Context

This part belongs to the BZT5250H-Q series of general-purpose Zener diodes designed for small and flat lead surface-mount applications. The series covers a wide voltage range from 1.8 V to 51 V, offering both ±2% and approximately ±5% tolerance options. The Q-series designation indicates automotive qualification under AEC-Q101 standards.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include BZT5250H-C51-QX for ±5% tolerance or BZT5250H-B51-Q without the reel suffix if loose components are acceptable. Verify pinout compatibility and thermal performance before substitution.