UDZVTE-1739B

Single Zener Diodes Overview

The UDZVTE-1739B is a single Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications. It features a nominal Zener voltage of 39 V with a power dissipation rating of 200 mW. The component utilizes the SOD-323FL (UMD2) package, measuring 2.5 x 1.25 mm with a height of 0.9 mm. Key electrical parameters include a maximum reverse leakage current of 100 nA at 30 V and a Zener impedance of 300 Ohms. It operates within a temperature range of -55°C to +150°C junction temperature and holds AEC-Q101 qualification.

Single Zener Diodes Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Compact two-terminal plastic mold type suitable for automated assembly
• High-reliability construction in a small surface-mount footprint

Single Zener Diodes Applications

• Voltage regulation in automotive electronic circuits
• Protection against overvoltage transients in vehicle systems
• Reference voltage generation in compact automotive modules

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' corresponds to the required tolerance and packaging configuration. Confirm AEC-Q101 certification status if automotive compliance is mandatory. Check RoHS directive adherence against current environmental regulations. Ensure the SOD-323FL footprint matches the target PCB design constraints.

Single Zener Diodes Selection Notes

Select this component when a 39 V Zener reference is required in space-constrained automotive designs. The UMD2 package offers a smaller profile compared to standard SOD-323 variants. Consider the 200 mW power limit for thermal management in dense assemblies. Verify that the 300 Ohm impedance meets the circuit's dynamic regulation requirements.

Single Zener Diodes Part Context

This part belongs to the UDZVTE series of high-reliability Zener diodes from ROHM. The series is characterized by its small plastic mold type and suitability for automated mounting processes. It serves as a specialized variant within the broader UDZVFH family, tailored for specific voltage and tolerance combinations required in industrial and automotive sectors.

Single Zener Diodes Replacement Considerations

The UDZVFHTE-1739B is a confirmed substitute with identical pinout and specifications. Both parts share the same UMD2 package and electrical characteristics. Verify that the replacement maintains the required AEC-Q101 qualification level for the application.