BZB84-B6V8-QR

Overview

The Nexperia BZB84-B6V8-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 cathodes. The nominal Zener voltage is 6.8 V with a ±2% tolerance (Series B). Key electrical parameters include a total power dissipation of 300 mW, a maximum forward voltage of 0.9 V at 10 mA, and a reverse current of 80 µA at 5 mA test current. 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 single compact package.
• Qualified according to AEC-Q101 standards for use in demanding automotive electronic environments.
• Offers tight voltage tolerance options, including Series B with ±2% accuracy for precision reference circuits.

Applications

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

Procurement Notes

Verify the specific ordering suffix and marking code against the latest official datasheet before finalizing procurement. Confirm that the required tolerance series matches the design specifications, as the BZB84-Q series includes both B (±2%) and C (±5%) variants. Ensure compatibility with the intended manufacturing process and storage conditions.

Selection Notes

Select this component when a dual-channel Zener solution is required in a minimal footprint. The BZB84-B6V8-QR is suitable for designs needing precise 6.8 V references with tight tolerance. Consider the thermal resistance and power dissipation limits if operating near the maximum ambient temperature. Verify pinout compatibility with existing PCB footprints, specifically the SOT-23 outline dimensions.

Part Context

This part belongs to the Nexperia 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 circuit designs where space is constrained. The 'Q' suffix indicates automotive qualification, distinguishing it from standard commercial grade parts while maintaining similar electrical characteristics and packaging.

Replacement Considerations

Direct replacements must match the SOT-23 package, dual common anode configuration, and 6.8 V nominal voltage. Check if the substitute supports AEC-Q101 if automotive reliability is required. Other Nexperia BZB84-Q variants with different voltages or tolerances are not electrically interchangeable without circuit redesign.