UMZ5.6KFHTL

Overview

The UMZ5.6KFHTL is a Zener diode array manufactured by Rohm Semiconductor, designed for automotive applications in compliance with the AEC-Q101 standard. It features a dual-line configuration housed in a UMD4 package (SOT-343/SC-82A), measuring 2.1x2.0 mm with a thickness of 1.0 mm. The device provides a nominal Zener voltage of 5.6 V, with a minimum of 5.43 V and a maximum of 5.77 V at a test current of 5 mA. It supports a power dissipation of 200 mW and operates at junction temperatures up to 150 °C. This component is designated as Not Recommended for New Designs.

Feature Summary

• Dual-line Zener array configuration within a compact surface-mount package
• Automotive-grade reliability certified under AEC-Q101 standards
• High thermal stability supporting operation up to 150 °C junction temperature

Applications

• Automotive circuit protection and voltage regulation
• ESD protection for sensitive electronic components
• Reference voltage generation in automotive control modules

Procurement Notes

This component is classified as Not Recommended for New Designs (NRND) by the manufacturer. Procurement is restricted to supporting existing production lines; new design implementations are discouraged. Verify availability through authorized distributors and confirm that the ordering suffix TL corresponds to the taping specification required for automated assembly processes.

Selection Notes

Engineers should identify a suitable replacement part number before initiating new designs, as this model is no longer recommended for new applications. When selecting alternatives, ensure compatibility with the required Zener voltage tolerance, power dissipation limits, and AEC-Q101 automotive qualification. Consider package footprint differences if substituting with devices from different series families.

Part Context

The UMZ5.6KFHTL belongs to Rohm's UMZ series of small mold type Zener diodes specifically engineered for automotive electronics. These devices utilize a dual-line configuration to provide efficient space-saving solutions for voltage clamping and reference applications. The series is characterized by high reliability and robust performance under the stringent conditions typical of automotive environments.

Replacement Considerations

The EDZVFH5.6B is documented as a similar specification replacement. Note that the substitute utilizes an EMD2 package (SOD-523/SC-79) instead of the UMD4 package, requiring PCB layout adjustments. The replacement offers single-line configuration and 150 mW power dissipation compared to the original's dual-line and 200 mW ratings.