BZB84-B9V1-QR

Overview

The Nexperia BZB84-B9V1-QR is a dual voltage regulator diode in the BZB84-Q series, housed in an SOT-23 (TO-236AB) surface-mount package. It features a dual common anode configuration with two independent cathodes. The nominal Zener voltage is 9.1 V with a ±2% tolerance. Key electrical parameters include a maximum reverse current of 15 µA at IZ=5 mA, a differential resistance of 6 Ω, and a temperature coefficient ranging from 3.8 to 7.0 mV/K. Total power dissipation is 300 mW, with a non-repetitive peak reverse power dissipation of 40 W per diode.

Feature Summary

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

Applications

• General regulation functions
• Automotive electronic circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the component meets all required automotive qualification standards before finalizing procurement orders for production use.

Selection Notes

Select this component when a dual-diode solution is required within a small SOT-23 footprint. The ±2% tolerance makes it suitable for applications demanding tighter voltage accuracy compared to standard ±5% variants. Ensure the operating current stays within the specified range to maintain the desired temperature coefficient characteristics.

Part Context

This device belongs to the BZB84-Q series, which offers a wide working voltage range from 2.4 V to 75 V. The series provides both ±2% and ±5% tolerance options in a single leadless plastic package, allowing designers to optimize board space while maintaining high reliability for general-purpose and automotive uses.

Replacement Considerations

Direct substitutes within the same series include BZB84-C9V1-QR, which shares the same package and configuration but offers approximately ±5% voltage tolerance instead of ±2%. Other BZB84-Q types are pin-compatible but must be evaluated for their specific Zener voltage and thermal ratings.