BZX84W-B12X

Single Zener Diodes Overview

The Nexperia BZX84W-B12X is a general-purpose Zener diode housed in a SOT323 (SC-70) leadless Surface-Mounted Device plastic package. It provides a nominal working voltage of 12 V with a tight tolerance of ±2%. The device supports a total power dissipation of 275 mW and operates within a junction temperature range of -55 °C to +150 °C. Key electrical characteristics include a maximum forward voltage of 0.9 V at 10 mA, a reverse current of 100 nA at 8 V, and a differential resistance of 25 Ω at a test current of 5 mA.

Single Zener Diodes Feature Summary

• Offers high precision regulation through a ±2% voltage tolerance series.
• Designed for compact layouts using a very small leadless SMD plastic package.
• Capable of handling non-repetitive peak reverse power dissipation up to 40 W.

Single Zener Diodes Applications

• General regulation functions
• High-frequency applications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix 'X' against official Nexperia documentation to confirm packaging details such as reel or cut tape specifications. Ensure the component meets RoHS compliance requirements relevant to your manufacturing process. Confirm that the non-automotive qualification status aligns with your application constraints before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when precise voltage regulation is required in space-constrained designs. The ±2% tolerance makes it suitable for applications demanding tighter accuracy than standard ±5% variants. Consider the thermal resistance and power dissipation limits relative to the PCB footprint and ambient operating conditions to ensure reliable performance.

Single Zener Diodes Part Context

This part belongs to the BZX84W series, which includes 74 types covering nominal voltages from 2.4 V to 75 V. The series utilizes the SOT323 package and is available in both ±2% and ±5% tolerance options. The BZX84W-B12X specifically represents the 12 V variant within the higher precision ±2% subset of this family.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include BZX84W-C12F and BZX84W-B12X. Verify that alternative parts match the required ±2% tolerance and SOT323 package dimensions to maintain board compatibility and electrical performance.