8ETU04S

Overview

The Vishay 8ETU04S is an ultrafast rectifier utilizing FRED Pt technology, housed in a D2PAK package. It features a maximum repetitive peak reverse voltage of 400 V and an average rectified forward current rating of 8 A at 155 °C case temperature. The device exhibits a typical reverse recovery time of 60 ns and a maximum forward voltage drop of 1.3 V at 8 A. Thermal resistance from junction to case is typically 1.8 °C/W, supporting operation within a junction temperature range of -65 °C to 175 °C.

Feature Summary

• Ultrafast recovery characteristics enabled by platinum-doped lifetime control
• Optimized low forward voltage drop for reduced conduction losses
• Low leakage current and minimized stored charge to reduce switching losses
• Industrial level qualification with rugged planar structure

Applications

• Output rectification stage of switch-mode power supplies (SMPS)
• Uninterruptible power supply (UPS) systems
• DC-to-DC converters
• Freewheeling diodes in low voltage inverters
• Chopper motor drives

Procurement Notes

Verify the specific ordering suffix to confirm the required packaging format, such as tube or tape and reel orientation. Confirm lead-free status if RoHS compliance is mandatory for the assembly process. Ensure thermal management design accounts for the specified junction-to-case thermal resistance values under actual operating conditions.

Selection Notes

Select this component when high-speed switching performance is critical to minimize energy dissipation. The D2PAK package provides a balance between current handling capability and surface-mount convenience. Evaluate the thermal environment to ensure the junction temperature remains within the specified 175 °C limit during peak load operations.

Part Context

This device belongs to the Vishay FRED Pt series of ultrafast recovery rectifiers. The 'S' suffix specifically denotes the D2PAK surface-mount case style, distinguishing it from the TO-262 through-hole variant designated by the '-1' suffix. Both variants share identical electrical specifications and internal die characteristics.

Replacement Considerations

The 8ETU04-1 serves as the direct pin-compatible alternative in the TO-262 through-hole package. Verify that any cross-package substitution accommodates the mechanical mounting requirements of the target circuit board layout.