2BZX84C4V7

Overview

The Diotec Semiconductor 2BZX84C4V7 is a surface-mount planar Zener diode housed in an SOT-23 package. It features a common anode configuration with a nominal Zener voltage range of 4.4 V to 5.0 V at a test current of 5 mA. The device supports a total power dissipation of 300 mW and operates within a junction temperature range of -50°C to +150°C. Electrical characteristics include a maximum dynamic resistance of less than 80 Ω and a reverse leakage current of 2 µA at 1 V. The component complies with RoHS standards and utilizes a UL 94V-0 case material.

Feature Summary

• Common anode dual-diode architecture for shared reference applications
• Sharp Zener voltage breakdown characteristic
• Low leakage current performance
• RoHS compliant manufacturing without exemptions

Applications

• Voltage stabilization circuits
• Voltage regulator designs
• Reference voltage generation

Procurement Notes

Verify the specific suffix designation when ordering, as it determines the quality grade. The absence of a suffix indicates industrial grade availability, while the -Q suffix denotes AEC-Q101 compliance and -AQ indicates AEC-Q101 qualification. Confirm that the selected variant meets the required reliability standards for the intended deployment environment before finalizing procurement.

Selection Notes

Select this component for designs requiring a common anode Zener reference in a compact SOT-23 footprint. Ensure the circuit design accommodates the specified 300 mW power dissipation limit under expected ambient conditions. Verify that the 4.4 V to 5.0 V voltage tolerance aligns with system requirements. Consider the thermal resistance of 420 K/W when calculating heat dissipation on the printed circuit board.

Part Context

This part belongs to the BZX84Cxx series of SMD planar Zener diodes manufactured by Diotec Semiconductor. The series covers a wide voltage range from 2.4 V to 47 V. The 2BZX84Cxx designation specifically identifies the common anode variant within this family, distinguishing it from the single diode BZX84Cxx counterparts which share similar electrical parameters but differ in internal configuration.

Replacement Considerations

Direct functional substitutes within the same manufacturer line include other variants from the 2BZX84Cxx series with different voltage ratings. Cross-manufacturer replacements must match the SOT-23 package, common anode topology, and 300 mW power rating. Verify that alternative parts meet the same Zener voltage tolerance and dynamic resistance specifications.