RFUS10TF4S

Single Diodes Overview

The RFUS10TF4S is a Super Fast Recovery Diode manufactured by ROHM Semiconductor, designed for high-speed switching applications. It features a 600V repetitive peak reverse voltage and a 10A average forward rectified current rating. The device utilizes a TO-220NFM (TO-220-2) through-hole package with an integrated tab for efficient thermal management. Key electrical characteristics include a maximum forward voltage of 1.5V at 10A and a fast recovery time of 35ns. The component operates within a junction temperature range of -55°C to +175°C, ensuring reliability in demanding power electronics environments.

Single Diodes Feature Summary

• Super fast recovery characteristic optimized for high-frequency switching efficiency
• Integrated thermal tab design facilitates effective heat dissipation in through-hole mounting
• High junction temperature capability supports operation in elevated thermal conditions

Single Diodes Applications

• High-frequency AC/DC and DC/DC converters
• Free-wheeling diodes in motor drive circuits
• Snubber circuits in power supplies

Single Diodes Procurement Notes

Verify the lifecycle status before integration, as this component may be marked as Not Recommended for New Designs (NRND). Confirm that the TO-220NFM package dimensions align with existing PCB footprints. Ensure that the 600V reverse voltage rating exceeds the peak inverse voltage requirements of the target circuit. Validate thermal resistance parameters against the system's cooling strategy to maintain junction temperatures within specified limits during continuous operation.

Single Diodes Selection Notes

Select this component when super fast recovery performance is required alongside high current handling capabilities. The TO-220NFM package is suitable for applications where robust mechanical mounting and superior thermal conductivity are prioritized over surface-mount space constraints. Compare the 35ns recovery time against alternative diodes to ensure compatibility with the switching frequency of the power stage. Consider the 1.5V forward voltage drop impact on overall system efficiency under full load conditions.

Single Diodes Part Context

This part belongs to ROHM's Super Fast Recovery Diode series, which targets high-efficiency power conversion systems. The RFUS10TF4S specifically addresses the need for reduced switching losses and improved waveform quality in medium-power applications. Its construction leverages ROHM's silicon planar technology to achieve reliable performance under high surge currents and rapid thermal cycling conditions typical in industrial and automotive power modules.

Single Diodes Replacement Considerations

Cross-reference with other ROHM super fast recovery diodes such as the RFU20TM5S or RFUS20NS4S for higher current variants. Verify pinout compatibility and thermal pad configuration when substituting with devices from other manufacturers like Shindengen Electric Mfg (e.g., DF10LC30). Ensure that any replacement maintains or improves upon the 35ns recovery time and 600V blocking voltage specifications.