BZB784-C3V9,115

Overview

The BZB784-C3V9,115 is a low-power voltage regulator diode manufactured by Nexperia. It operates within the BZB784 series and is housed in a compact SOT323 (SC-70) surface-mount package. The device features a nominal Zener voltage of 3.9 V with an approximate tolerance of 5%. It supports a total power dissipation of up to 350 mW and functions across a working voltage range from 2.4 V to 15 V. The component is qualified under the AEC-Q101 standard for automotive applications.

Feature Summary

• Provides general regulation and voltage reference capabilities in small-scale circuit designs.
• Offers ESD and surge protection functionality suitable for high-density layouts.
• Delivers narrow working-voltage tolerances for precise voltage control.

Applications

• General regulation functions
• Voltage reference circuits
• ESD and surge protection

Procurement Notes

Verify the specific ordering suffix

Selection Notes

Select this component when a low-profile SOT323 package is required for space-constrained PCBs. Ensure the design accommodates the 350 mW power dissipation limit at the expected operating temperature. Confirm that the 3.9 V nominal voltage aligns with the target reference or regulation requirements.

Part Context

This part belongs to the BZB784 series of low-power voltage regulator diodes. The series provides a comprehensive range of package and power dissipation options designed for customized protection in small-scaled, high-density circuit designs. It represents a solution for achieving effective voltage regulation in minimal footprints.

Replacement Considerations

Direct substitutes must match the SOT323 package, 3.9 V Zener voltage, and 350 mW power rating. Verify compatibility with AEC-Q101 qualification if the application requires automotive-grade reliability. Check pinout alignment to ensure direct interchangeability without circuit modification.