BZX84B3V3-AQ

Single Zener Diodes Overview

The BZX84B3V3-AQ is a single SMD planar Zener diode from Diotec Semiconductor, housed in an SOT-23 package. It features a nominal Zener voltage of 3.3 V with a tight tolerance of approximately ±2%. The device operates within a junction temperature range of -50°C to +150°C and dissipates up to 300 mW. It is AEC-Q101 qualified for automotive applications, offering sharp breakdown characteristics and low leakage current.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• Approximately ±2% tolerance on Zener voltage
• Sharp Zener voltage breakdown characteristic
• Low reverse leakage current

Single Zener Diodes Applications

• Voltage stabilization circuits
• Voltage regulators
• Reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific suffix -AQ confirms AEC-Q101 qualification status as distinct from standard commercial grades. Ensure the ordering code matches the required Zener voltage range and package type. Confirm compliance requirements such as RoHS and REACH are met for the intended market. Check for any specific marking codes associated with this variant.

Single Zener Diodes Selection Notes

Select this component when a precise 3.3 V reference with high stability is required in automotive environments. The tight ±2% tolerance makes it suitable for sensitive analog circuits. Consider the thermal resistance and power dissipation limits relative to the PCB copper pad area. Verify that the dynamic resistance at the operating current meets circuit noise specifications.

Single Zener Diodes Part Context

This part belongs to the BZX84B series of SMD planar Zener diodes. The series includes various voltage ratings from 2.4 V to 47 V. The -AQ suffix denotes AEC-Q101 qualification, distinguishing it from the standard commercial grade (-Q compliant) versions. The series is designed for surface-mount assembly in compact electronic designs.

Single Zener Diodes Replacement Considerations

Check for equivalent parts with matching Zener voltage, tolerance, and package. Verify if alternative components meet AEC-Q101 qualification if automotive reliability is required. Ensure thermal and electrical characteristics align with the original design constraints.