PDZVTR39A

Single Zener Diodes Overview

The PDZVTR39A is a Zener diode manufactured by ROHM Semiconductor, designed for constant voltage control applications. It features a nominal Zener voltage of 3.9V with a tolerance of ±5.13%. The device supports a maximum power dissipation of 1W and operates at a junction temperature up to 150°C. Key electrical parameters include a maximum Zener impedance of 15 Ohms and a reverse leakage current of 40µA at 1V. It is housed in an SOD-128 surface-mount package, specifically the PMDTM form factor, suitable for compact circuit designs.

Single Zener Diodes Feature Summary

• Small plastic mold package design for space-constrained applications
• High reliability construction suitable for stable voltage regulation
• Surface mount configuration for automated assembly processes

Single Zener Diodes Applications

• Constant voltage control circuits
• Voltage reference applications
• General purpose electronic equipment requiring stable bias voltages

Single Zener Diodes Procurement Notes

Verify the specific suffix 'A' against the official ROHM datasheet to confirm exact tolerance and testing conditions. Ensure the ordering code matches the required packaging format. Confirm RoHS compliance status as per the latest manufacturer documentation before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a 3.9V Zener reference is needed in a small SMD footprint. Consider the 1W power rating and 150°C thermal limit for thermal management. Verify that the SOD-128/PMDTM package dimensions fit the PCB layout constraints compared to standard axial or larger SMD packages.

Single Zener Diodes Part Context

This part belongs to the PDZV series of Zener diodes from ROHM Semiconductor. The series is characterized by small plastic mold packages intended for high-reliability applications. The PDZVTR39A specifically denotes the 3.9V variant within this lineup, sharing common package and reliability standards with other voltage values in the same family.

Single Zener Diodes Replacement Considerations

Check for direct substitutes such as PDZV3.9B if availability differs, noting potential variations in status or packaging. Ensure any replacement maintains the 3.9V Zener voltage, 1W power rating, and compatible SOD-128 package type.