BZB84-B5V1-QR

Overview

The Nexperia BZB84-B5V1-QR is a dual voltage regulator diode in the BZB84-Q series, housed in an SOT-23 surface-mount package. It features a dual common anode configuration with two independent Zener diodes sharing a single cathode pin. The nominal working voltage is 5.1 V with a ±2% tolerance (B series). Key electrical parameters include a maximum total power dissipation of 300 mW and a non-repetitive peak reverse power dissipation of 40 W per diode. The device operates within a junction temperature range of -55 °C to +150 °C and is qualified according to AEC-Q101 for automotive applications.

Feature Summary

• Dual common anode configuration providing two independent regulation channels in a compact SOT-23 package.
• Qualified according to AEC-Q101 standards for use in demanding automotive electronic environments.
• High surge capability with a non-repetitive peak reverse power dissipation rating of 40 W per diode.

Applications

• General voltage regulation functions
• Automotive circuit protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and marking codes. Confirm that the component meets all required automotive qualification standards before finalizing procurement specifications. Cross-reference the part number with official distributor catalogs to validate availability and lead times.

Selection Notes

Select this component when a dual-channel voltage reference or protection scheme is required in a space-constrained design. The dual common anode topology allows for efficient layout compared to using two separate single diodes. Ensure the application current remains within the specified limits to maintain the ±2% voltage tolerance and prevent thermal overload.

Part Context

This component belongs to the BZB84-Q series, which offers a wide range of nominal voltages from 2.4 V to 75 V. The series is designed specifically for surface-mounted applications requiring robust performance in automotive environments. The BZB84-B5V1-QR represents the 5.1 V variant within the tighter ±2% tolerance sub-series.

Replacement Considerations

Direct replacements must match the SOT-23 package, dual common anode configuration, and 5.1 V nominal voltage. Verify that any substitute component also holds AEC-Q101 qualification if used in automotive contexts. Check differential resistance and reverse leakage current specifications to ensure circuit compatibility.