BZB84-B16-QR

Overview

The Nexperia BZB84-B16-QR is a dual voltage regulator diode in a SOT-23 surface-mounted package. It features a dual common anode configuration with two independent Zener diodes sharing a single anode terminal. The device provides a nominal working voltage of 16 V with a tight tolerance of ±2%. Key electrical parameters include a total power dissipation of 300 mW, a maximum reverse current of 200 μA at IZ=5 mA, and a differential resistance of 11.2 Ω. The junction temperature range spans from -55 °C to +150 °C, and the component is qualified according to AEC-Q101 standards for automotive applications.

Feature Summary

• Dual common anode configuration integrating two independent Zener diodes within a single compact SOT-23 package.
• High precision voltage regulation with a ±2% tolerance series (B) for stable reference performance.
• Automotive-grade qualification compliant with AEC-Q101 standards for reliability in demanding environments.

Applications

• General voltage regulation functions
• Voltage reference circuits requiring dual polarity or split supplies
• Over-voltage protection in automotive electronic systems

Procurement Notes

Verify the specific suffix 'QR' against the manufacturer's latest documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure that the ordering code matches the required tolerance series 'B' for ±2% accuracy. Cross-reference the marking code 'PT%' on the physical component to validate authenticity and correct variant identification before integration into production lines.

Selection Notes

Select this component when a dual Zener solution with a shared anode is required to save board space compared to discrete single diodes. The ±2% tolerance makes it suitable for precision applications where standard ±5% devices are insufficient. Consider the 300 mW total power dissipation limit and ensure adequate thermal management on the PCB footprint to maintain junction temperatures within the specified operating range during continuous operation.

Part Context

This part belongs to the Nexperia BZB84-Q series, which offers a comprehensive range of dual voltage regulator diodes. The series covers nominal voltages from 2.4 V to 75 V in both ±2% (B series) and ±5% (C series) tolerances. All variants share the same SOT-23 plastic package and AEC-Q101 automotive qualification, providing designers with flexible options for high-density circuit designs while maintaining consistent form factor and reliability standards across the product line.

Replacement Considerations

Direct substitutes within the same family include BZB84-C16-QR, which shares the identical package and pinout but offers approximately ±5% voltage tolerance instead of ±2%. Single-diode equivalents like BZX84-C16-Q would require two components and additional board space. Verify that any replacement maintains the dual common anode topology if circuit symmetry depends on the shared anode connection.