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The BZB784-C4V3,115 is a voltage regulator diode manufactured by Nexperia. It features a nominal Zener voltage of 4.3 V with a tolerance of approximately 5%. The device is housed in an SOT323 (SC-70) surface-mount package and supports a maximum total power dissipation of 350 mW. It operates within a working voltage range spanning from 2.4 V to 15 V. The component is qualified under the AEC-Q101 standard for automotive applications.
Verify the specific suffix
Select this component when a compact Zener diode with 5% tolerance is required for low-power regulation. Ensure the 350 mW power dissipation limit accommodates the circuit's thermal requirements. Confirm that the SOT323 footprint matches the PCB layout constraints.
This part belongs to the BZB784 series of low-power voltage regulator diodes. The series offers various package and power options for customized protection in small-scale designs. It complements other Nexperia Zener products like the BZX84J series, providing a robust solution for general-purpose stabilization.
Check for direct equivalents within the BZB784 series or compatible SOT323 Zener diodes from other manufacturers. Verify pinout compatibility and ensure the replacement meets the same AEC-Q101 automotive qualification if required.