BZB784-C3V0-QX

Overview

The Nexperia BZB784-C3V0-QX is a low-power voltage regulator double diode housed in an SOT-323 (SC-70) surface-mount package. It features a nominal Zener voltage of 3 V with a tolerance of ±5%. The device operates within a junction temperature range of -55 °C to +150 °C and supports a total power dissipation of up to 350 mW when both diodes are loaded. Key electrical parameters include a maximum reverse current of 10 µA, a differential resistance of 80 Ω at IZ = 5 mA, and a typical forward voltage of 0.9 V at IF = 10 mA.

Feature Summary

• Dual common-anode configuration for compact circuit design
• Qualified according to AEC-Q101 standards for automotive reliability
• Narrow working-voltage tolerances for precise regulation

Applications

• General voltage regulation functions
• ESD protection circuits
• Surge protection applications

Procurement Notes

Verify the specific suffix 'QX' against official Nexperia documentation to confirm tape-and-reel packaging details and ensure compliance with automotive qualification requirements. Confirm that the ordering code matches the exact voltage variant required for the target application design.

Selection Notes

Select this component for high-density designs requiring dual voltage references or protection paths in a minimal footprint. Ensure the operating current remains within limits to maintain the specified ±5% voltage tolerance and verify thermal management capabilities given the 350 mW total dissipation rating in the SOT-323 package.

Part Context

This part belongs to the BZB784-Q series, which offers a comprehensive range of nominal working voltages from 2.4 V to 15 V. All variants share the same SOT-323 package and AEC-Q101 automotive qualification, allowing designers to standardize on a single package type while adjusting voltage levels via different suffix codes.

Replacement Considerations

Direct substitutes within the same family include BZB784-C3V0-Q. Other BZB784-Q variants may serve as functional replacements if the voltage tolerance and pinout compatibility align with the circuit requirements.

FAQ

What is the pin configuration for the BZB784-C3V0-QX?

The device uses a common-anode configuration where Pin 1 is Cathode 1, Pin 2 is Cathode 2, and Pin 3 is the Common Anode.

Is this component suitable for automotive applications?

Yes, the BZB784-Q series is qualified according to the AEC-Q101 standard and is recommended for use in automotive applications.

What is the maximum non-repetitive peak reverse current?

The maximum non-repetitive peak reverse current (IZSM) is 6.0 A for a pulse duration of 100 µs at an ambient temperature of 25 °C.