BZB84-C39-QR

Overview

The Nexperia BZB84-C39-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 Zener diodes sharing a single anode terminal. The device provides a nominal working voltage of 39 V with a tolerance of approximately ±5%. Key electrical parameters include a total power dissipation of 300 mW and a non-repetitive peak reverse power dissipation of 40 W per diode. It operates within a junction temperature range of -55 °C to +150 °C and is qualified according to AEC-Q101 standards for automotive applications.

Feature Summary

• Dual common anode configuration integrating two independent Zener diodes in a compact SOT23 package
• Qualified according to AEC-Q101 standard for use in demanding automotive applications
• Offers high non-repetitive peak reverse power dissipation capability of up to 40 W per diode

Applications

• General regulation functions
• Automotive electronic circuits requiring dual voltage references

Procurement Notes

Verify the specific ordering suffix and marking code against the official datasheet table to ensure correct voltage tolerance selection. Confirm that the required package type matches the SOT23 specification. Check for any recent revision history updates that may affect pinning or thermal characteristics before finalizing procurement orders.

Selection Notes

Select this component when a dual common anode topology is required for space-constrained designs. Ensure the operating current stays within limits to maintain the specified ±5% voltage tolerance. Consider the thermal resistance values when designing heat dissipation strategies for high-density PCB layouts.

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 includes both ±2% (B series) and ±5% (C series) tolerance options. All variants share the same SOT23 package and AEC-Q101 qualification, providing design flexibility for various voltage regulation needs in automotive systems.

Replacement Considerations

Direct substitutes within the same series include BZB84-B39-Q for tighter tolerance requirements. Single-diode equivalents like BZX84-C39-QR require circuit redesign due to different pin configurations and lack of dual functionality.