BZB84-B12-QR

Overview

The Nexperia BZB84-B12-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 12 V with a tolerance of ±2%. Key electrical parameters include a maximum reverse current of 150 µA at 5 mA test current, a differential resistance of 8 Ω, and a temperature coefficient ranging from 6.0 to 10.0 mV/K. Total power dissipation is limited to 300 mW, while non-repetitive peak reverse power dissipation reaches 40 W. The device operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for compact circuit design
• Qualified according to AEC-Q101 for automotive applications
• Narrow working-voltage tolerances available in B and C series

Applications

• General regulation functions
• Voltage reference circuits
• Automotive electronic systems

Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm package type and qualification status. Ensure the ordering code matches the required voltage tolerance series (B or C). Cross-reference the manufacturer part number with distributor listings to confirm authenticity and availability before finalizing procurement orders.

Selection Notes

Select the BZB84-B12-QR when a dual-diode solution is required in a small SOT-23 footprint. The B-series designation indicates a tighter ±2% voltage tolerance compared to the C-series. Consider the thermal resistance and total power dissipation limits when designing for high ambient temperatures or continuous operation conditions.

Part Context

This component belongs to the BZB84-Q series of dual voltage regulator diodes manufactured by Nexperia. The series offers a wide range of nominal working voltages from 2.4 V to 75 V. All devices in this family share the same SOT-23 plastic package and dual common anode pinout, providing flexibility for various voltage regulation needs in space-constrained designs.

Replacement Considerations

Direct replacements within the same series include BZB84-C12-Q, which shares the same package and configuration but has approximately ±5% voltage tolerance. Other BZB84-Q variants with different Zener voltages can be used if the voltage requirement changes, provided the pinout remains compatible.