BZX84-C51-QR

Single Zener Diodes Overview

The Nexperia BZX84-C51-QR is a low-power voltage regulator diode housed in a SOT-23 (TO-236AB) surface-mount package. It features a nominal Zener voltage of 51 V with a tolerance of approximately ±5 %. The device supports a total power dissipation of 250 mW and operates within a temperature range of -55 °C to +150 °C. Qualified under AEC-Q101, it includes a non-repetitive peak reverse power dissipation rating of 40 W.

Single Zener Diodes Feature Summary

• Qualified for automotive applications according to AEC-Q101 standards
• Low-power operation with a maximum total power dissipation of 250 mW
• Small plastic surface-mounted device package for efficient board space utilization

Single Zener Diodes Applications

• General regulation functions

Single Zener Diodes Procurement Notes

Verify the specific suffix 'QR' against the manufacturer's current ordering information to confirm reel packaging specifications. Ensure the component meets the required AEC-Q101 qualification level for the intended automotive application environment. Cross-reference the marking code '%B7' on the physical device to validate authenticity and correct part identification before integration into production designs.

Single Zener Diodes Selection Notes

Select this component when a stable reference voltage near 51 V is required in compact circuit designs. The SOT-23 package suits high-density PCB layouts where space is limited. Consider the thermal resistance characteristics and ambient operating conditions to ensure the 250 mW power dissipation limit is not exceeded during continuous operation.

Single Zener Diodes Part Context

This device belongs to the BZX84-Q series of voltage regulator diodes manufactured by Nexperia. The series offers various breakdown voltages ranging from 2.4 V to 75 V across different tolerance grades. The BZX84-C variant specifically provides approximately ±5 % tolerance, balancing cost and precision for general-purpose regulation tasks.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other BZX84-C51-Q variants from Nexperia or equivalent 51 V Zener diodes in SOT-23 packages from other manufacturers, provided they meet identical electrical ratings and AEC-Q101 automotive qualification requirements.