BZB84-C12-QR

Overview

The Nexperia BZB84-C12-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 device provides a nominal Zener voltage of 12 V with a tolerance of approximately ±5%. Key electrical parameters include a maximum total power dissipation of 300 mW and a non-repetitive peak reverse power dissipation of 40 W. The forward voltage is specified at a maximum of 0.9 V at 10 mA. Operating characteristics cover a junction temperature range from -55 °C to +150 °C.

Feature Summary

• Dual common anode configuration for compact circuit design
• Qualified according to AEC-Q101 for automotive applications
• Small plastic SOT-23 package suitable for high-density mounting

Applications

• General regulation functions

Procurement Notes

Verify the specific suffix QR indicates reel packaging when sourcing. Confirm the C-series designation corresponds to the approximate ±5% voltage tolerance required by the design. Ensure the component meets AEC-Q101 standards if the target application involves automotive systems. Cross-reference the marking code UU% for physical identification on the package.

Selection Notes

Select this part for designs requiring dual voltage references or protection in a minimal footprint. The C-series tolerance offers cost-effective regulation where tight voltage precision is not critical. Verify that the 300 mW total power dissipation rating accommodates the thermal conditions of the final assembly. Consider the dual common anode topology to simplify biasing networks compared to single diodes.

Part Context

This component belongs to the Nexperia BZB84-Q series, which comprises 74 types with nominal working voltages ranging from 2.4 V to 75 V. The series is designed for general-purpose Zener regulation in small-scale, high-density circuits. The Q-series specifically denotes qualification for automotive environments, expanding the utility of the standard BZB84 line into more demanding operational contexts.

Replacement Considerations

The BZB84-B12-QR serves as a direct alternative within the same series, offering identical pinout and form factor but with tighter ±2% voltage tolerance instead of the C-series ±5%.