BZB84-B3V3-QR

Overview

The Nexperia BZB84-B3V3-QR is a dual voltage regulator diode in the BZB84-Q series, housed in an SOT23 surface-mount package. It features a common anode configuration with two independent cathodes. The device provides a nominal Zener voltage of 3.3 V with a tight tolerance of ±2%. Key electrical parameters include a maximum reverse current of 5 μA at 5 mA test current and a differential resistance of 95 Ω. Total power dissipation is rated at 300 mW, while non-repetitive peak reverse power dissipation reaches 40 W per diode. The component operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for compact circuit design
• Qualified according to AEC-Q101 for automotive applications
• High precision ±2% voltage tolerance series

Applications

• General regulation functions
• Automotive electronic circuits

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm packaging details such as reel or cut tape specifications. Ensure the selected variant matches the required voltage tolerance and package dimensions for your PCB layout. Cross-reference the marking code VC% to confirm authenticity upon receipt.

Selection Notes

Select this component when a dual-diode solution is required in a small SOT23 footprint. The B-series designation indicates the tighter ±2% tolerance compared to the C-series. Consider the 300 mW total power dissipation limit and thermal resistance values when designing heat management strategies for dense assemblies.

Part Context

This part belongs to the BZB84-Q series, which offers a comprehensive range of dual Zener diodes from 2.4 V to 75 V. The series is designed for high-density surface-mounted designs and includes both standard and automotive-qualified options. The BZB84-B3V3-QR specifically addresses low-voltage regulation needs with precise tolerance requirements.

Replacement Considerations

Direct replacements within the same family include other BZB84-Q variants with different voltage ratings but identical pinouts and tolerances. For single-diode equivalents, consider the BZX84 series, though physical dimensions and pin configurations differ significantly.