BZB84-B24-QR

Overview

The Nexperia BZB84-B24-QR is a dual voltage regulator diode from the BZB84-Q series, housed in an SOT23 surface-mounted package. It features a dual common anode configuration with two independent Zener diodes sharing a single anode terminal. The device provides a nominal working voltage of 24 V with a tolerance of ±2%. Key electrical parameters include a total power dissipation of 300 mW and a non-repetitive peak reverse power dissipation of 40 W per diode. The component operates within a junction temperature range of -55 °C to +150 °C and is qualified according to AEC-Q101 standards for automotive applications.

Feature Summary

• Dual common anode configuration integrating two independent Zener diodes in a compact SOT23 package
• Qualified according to AEC-Q101 standards for use in demanding automotive applications
• Offers tight voltage tolerance options including ±2% (B series) and approximately ±5% (C series)
• Supports general regulation functions with high non-repetitive peak reverse power dissipation capability

Applications

• General regulation functions
• Automotive electronic circuits requiring AEC-Q101 qualified components
• Voltage reference applications in dense circuit designs

Procurement Notes

Verify the specific ordering suffix and tolerance code when sourcing. Confirm that the required voltage tolerance matches the 'B' series specification for ±2% accuracy. Ensure the procurement channel provides documentation confirming AEC-Q101 qualification status for automotive deployment. Check for any recent product change notices regarding marking codes or package dimensions.

Selection Notes

Select this component when a dual Zener configuration with a shared anode is required to save board space. The BZB84-B24-QR is suitable for circuits needing a precise 24 V reference with tight tolerance. Consider the thermal resistance characteristics if multiple devices are placed closely on the PCB. Verify that the operating current remains within limits to maintain the specified voltage stability and temperature coefficient.

Part Context

This part belongs to the Nexperia BZB84-Q series, which comprises 74 types of dual voltage regulator diodes. The series covers nominal working voltages ranging from 2.4 V to 75 V in the E24 range. All variants share the same SOT23 plastic package and dual common anode topology, differing primarily in their Zener voltage ratings and tolerance grades.

Replacement Considerations

Direct replacements must match the SOT23-3 pinout and dual common anode configuration. Single Zener diodes cannot substitute this component without circuit redesign. Other Nexperia BZB84-Q series parts with different voltages may fit physically but will not provide the correct regulation level.