2BZX84C3V3-AQ

Overview

The Diotec Semiconductor 2BZX84C3V3-AQ is a dual common anode SMD planar Zener diode housed in an SOT-23 (TO-236) package. It features a nominal Zener voltage of 3.3 V with a tolerance of ±5%, tested at IZ = 5 mA. The device supports a maximum power dissipation of 300 mW and operates within a junction temperature range of -50°C to +150°C. Key electrical characteristics include a dynamic resistance of less than 95 Ohms, a reverse leakage current of 5 µA at 1 V, and a temperature coefficient of -8...-5 %/°C. The component is AEC-Q101 qualified for automotive applications.

Feature Summary

• Dual common anode configuration for space-saving circuit designs
• Sharp Zener voltage breakdown characteristics
• Low leakage current performance
• Compliant with RoHS directives without exemptions

Applications

• Voltage stabilization circuits
• Regulator applications
• Automotive electronics systems

Procurement Notes

Verify the specific suffix '-AQ' to confirm AEC-Q101 qualification status, as standard industrial or commercial grades lack this automotive certification. Ensure the ordering part number matches the required dual common anode topology rather than single diode variants. Confirm that the SOT-23 package dimensions align with the target PCB footprint constraints before finalizing procurement.

Selection Notes

Select this component when a dual Zener solution with a shared anode is required in a compact surface-mount form factor. The 300 mW power rating and wide operating temperature range make it suitable for general industrial and automotive environments. Verify that the 3.3 V breakdown voltage meets the specific reference requirements of the design circuit.

Part Context

This component belongs to the 2BZX84Cxx series of SMD Planar Zener Diodes from Diotec Semiconductor. It shares the same physical package and thermal characteristics as the single diode BZX84Cxx series but integrates two Zener structures into one package. The 'AQ' suffix specifically denotes AEC-Q101 qualification, distinguishing it from standard industrial (-Q) or commercial (-C) grade versions.

Replacement Considerations

Direct parameter-equivalent replacements include other manufacturers' dual common anode Zener diodes in SOT-23 packages with 3.3 V ratings. Single diode equivalents like BZX84C3V3 can be used if the circuit topology allows for separate components instead of a dual package.