BZB84-B3V9,215

Overview

The Nexperia BZB84-B3V9,215 is a dual Zener diode in a SOT23 (TO-236AB) surface-mount package. It features a common anode configuration with two independent cathodes. The nominal Zener voltage is 3.9 V with a ±2% tolerance series. Key electrical parameters include a maximum reverse current of 3 μA at IZ=5 mA, a differential resistance of 600 Ω, and a temperature coefficient of -3.5 mV/K. Total power dissipation is 300 mW, with a non-repetitive peak reverse power dissipation of 40 W.

Feature Summary

• Dual common anode configuration for compact circuit design
• Automotive qualified according to AEC-Q101 standards
• High precision voltage regulation with ±2% tolerance
• Small plastic SMD package suitable for automated assembly

Applications

• General regulation functions
• Voltage reference circuits
• Over-voltage protection

Procurement Notes

Verify the specific ordering suffix matches the required packaging format before purchase. Confirm that the component status remains active for long-term production needs. Check for any recent datasheet revisions that might affect pinning or thermal characteristics. Ensure compatibility with existing PCB footprints and soldering profiles.

Selection Notes

Select this part for applications requiring precise dual voltage regulation in a small footprint. The ±2% tolerance makes it suitable for sensitive analog circuits. Consider the negative temperature coefficient when designing for wide operating temperature ranges. Verify that the 300 mW total power dissipation meets the thermal requirements of the target application.

Part Context

This component belongs to the Nexperia BZB84 series of dual Zener diodes. The series offers a wide range of nominal working voltages from 2.4 V to 75 V. It is designed for general-purpose voltage regulation in high-density electronic circuits. The SOT23 package allows for efficient space utilization on printed circuit boards.

Replacement Considerations

Direct substitutes within the same series include other BZB84 variants with different voltage ratings but identical pinouts. Cross-brand replacements must match the SOT23 package, dual common anode configuration, and similar electrical specifications.