UDZVTE-172.4B

Single Zener Diodes Overview

The UDZVTE-172.4B is a single Zener diode manufactured by ROHM Semiconductor, designed for surface-mount applications in the SOD-323-2 package. It features a nominal Zener voltage of 2.4 V with a maximum power dissipation of 200 mW. The device operates at a test current of 5 mA and supports a maximum junction temperature of +150 °C. Key electrical specifications include a maximum reverse leakage current of 100 nA and a Zener impedance of 120 Ohms. This component is part of the automotive-grade UDZVFH series, complying with AEC-Q101 standards for high reliability.

Single Zener Diodes Feature Summary

• Automotive-grade reliability compliant with AEC-Q101 standards
• Ultra-small two-terminal plastic package suitable for automated mounting
• High thermal stability supporting a maximum junction temperature of 150 °C

Single Zener Diodes Applications

• Electrostatic discharge (ESD) protection in automotive circuits
• Voltage reference applications requiring stable low-voltage regulation
• Transient voltage suppression in compact electronic modules

Single Zener Diodes Procurement Notes

Verify the specific suffix 'B' against the official ROHM datasheet to confirm tolerance and packaging details. Ensure the ordering part number matches the required tape-and-reel quantity. Confirm RoHS compliance status and check for any recent lifecycle notices regarding new design recommendations versus existing production support.

Single Zener Diodes Selection Notes

Select this component when an automotive-certified Zener diode with a 2.4 V breakdown voltage is required in a small SMD footprint. Consider the 200 mW power rating and 120 Ohm impedance for circuit compatibility. Verify that the SOD-323-2 package dimensions fit the PCB layout constraints and that the 150 °C operating temperature meets the environmental requirements.

Single Zener Diodes Part Context

This part belongs to the UDZVFH series of ultra-small, high-reliability Zener diodes from ROHM. The series is specifically engineered for automotive electronics, offering robust performance in harsh environments. The UDZVTE-172.4B variant utilizes the UMD2 package code, providing a compact solution for space-constrained designs while maintaining strict quality standards.

Single Zener Diodes Replacement Considerations

The UDZS22B is not a direct substitute due to different voltage ratings. For equivalent functionality, consider the UDZVFH2.4B or UDZV2.4B which share the same pinout and package. Verify that the replacement maintains the AEC-Q101 qualification if automotive use is required.