BZB84-C43-QR

Overview

The Nexperia BZB84-C43-QR is a dual voltage regulator diode in the BZB84-Q series, housed in an SOT23 surface-mounted plastic package. It features a dual common anode configuration with two independent Zener diodes sharing a single anode terminal. The device is qualified according to AEC-Q101 for automotive applications. 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 forward voltage (VF) is typically 0.9 V at IF = 10 mA. The 'C' suffix indicates a nominal working voltage tolerance of approximately ±5%.

Feature Summary

• Dual common anode configuration integrating two Zener diodes in one compact SOT23 package
• Qualified according to AEC-Q101 standard for automotive application suitability
• Low-profile SOT23 plastic package optimized for surface-mounted design

Applications

• General regulation functions
• Automotive electronic circuits requiring dual voltage references

Procurement Notes

Verify the specific ordering code matches the required tolerance series and package variant. Confirm that the AEC-Q101 qualification status aligns with target automotive reliability standards. Check the latest datasheet revision for any updates to marking codes or thermal characteristics before finalizing procurement specifications.

Selection Notes

Select this component when dual voltage regulation is needed within space-constrained designs. The C-series offers approximately ±5% tolerance, suitable for general-purpose applications where tighter precision is not critical. Ensure the operating current remains within limits to maintain the specified differential resistance and temperature coefficient performance.

Part Context

This part belongs to the Nexperia BZB84-Q series of dual voltage regulator diodes. The series provides various breakdown voltages from 2.4 V to 75 V in the E24 range. The BZB84-C43-QR specifically denotes the 43 V nominal voltage variant with C-series tolerance, packaged in SOT23.

Replacement Considerations

Single-channel Zener diodes like the BZX84-B43-Q can replace individual sections but require double the footprint. Other dual Zener packages such as SOD323F-based variants offer different thermal profiles. Verify pinout compatibility and thermal resistance differences when substituting.