BZB84-B47-QR

Overview

The Nexperia BZB84-B47-QR is a dual voltage regulator diode in the BZB84-Q series, housed in an SOT23 surface-mounted package. It features a dual common anode configuration with two independent cathodes. The device provides a nominal Zener voltage of 47 V with a tolerance of ±2%. Key electrical parameters include a total power dissipation of 300 mW, a non-repetitive peak reverse power dissipation of 40 W, and a maximum forward voltage of 0.9 V at 10 mA. It operates within a junction temperature range of -55 °C to +150 °C and is qualified according to AEC-Q101 standards.

Feature Summary

• Dual common anode configuration for compact circuit design
• Automotive-grade qualification compliant with AEC-Q101
• High non-repetitive peak reverse power dissipation capability

Applications

• General regulation functions
• Overswing prevention circuits
• Noise suppression applications

Procurement Notes

Verify the specific suffix 'QR' against official Nexperia documentation to confirm reel packaging specifications. Ensure the component matches the required automotive grade certification by checking the latest product data sheet revision. Confirm that the ±2% tolerance variant aligns with the design requirements before finalizing procurement orders.

Selection Notes

Select this component when a dual Zener solution in a small SOT23 package is required for space-constrained designs. The B-series designation indicates a tighter ±2% voltage tolerance compared to the C-series. Consider the thermal resistance characteristics and the specific operating current requirements to ensure the device remains within its safe operating area during application.

Part Context

This part belongs to the BZB84-Q series, which offers a wide range of nominal working voltages from 2.4 V to 75 V. The series is designed for general-purpose Zener regulation in both industrial and automotive environments. The dual common anode structure allows for efficient use of board space compared to using two separate single diodes.

Replacement Considerations

Direct substitutes within the same family include BZB84-C47-QR, which shares the same package and configuration but offers approximately ±5% voltage tolerance instead of ±2%. Other BZB84-Q variants can replace this part if different voltage ratings are acceptable.