RURH1550CC

Overview

The RURH1550CC is an ultrafast dual diode manufactured by Harris Corporation. It features a planar, silicon nitride passivated, ion-implanted, epitaxial construction designed for high-speed switching applications. The device is rated for a maximum repetitive reverse voltage of 500V and supports an average forward current of 15A per element. Key electrical characteristics include a soft recovery profile with a reverse recovery time (tRR) of less than 30ns and a junction temperature rating up to +175°C. The component is avalanche energy rated, ensuring robustness against transient voltage events in demanding power electronics environments.

Feature Summary

• Ultrafast switching capability with soft recovery characteristics to minimize electromagnetic interference
• High thermal stability with a rated junction temperature of +175°C
• Robust construction utilizing silicon nitride passivation and ion-implanted epitaxial layers
• Avalanche energy rated for enhanced reliability under transient stress conditions

Applications

• High-frequency DC-to-DC converters
• Free-wheeling rectification in switch-mode power supplies
• Snubber circuits requiring fast recovery times
• Inverter and chopper circuits in industrial motor drives

Procurement Notes

Verify the manufacturer origin as Harris Corporation or its successors, noting that original Harris semiconductor assets were acquired by Intersil and subsequently Renesas. Confirm the package type matches your PCB footprint requirements, typically TO-220AC or similar for this series. Ensure the part number suffix corresponds to the specific voltage rating and pin configuration required for your design. Request datasheets from authorized distributors to confirm current production status and compliance with RoHS directives if applicable.

Selection Notes

Select the RURH1550CC when circuit designs demand low reverse recovery charge and minimal switching losses at high frequencies. The 500V rating provides sufficient headroom for standard 480V AC systems or higher voltage DC buses. Consider the thermal management requirements associated with the 15A current rating and the +175°C junction limit. Compare performance metrics such as forward voltage drop and reverse recovery time against alternative ultrafast diodes to ensure compatibility with existing snubber and gate drive components.

Part Context

This component belongs to the Harris ultrafast recovery rectifier family, which includes single and dual diode configurations. The 'RURH' prefix typically denotes a dual diode arrangement within this product line. These devices were engineered to replace slower standard recovery diodes in high-efficiency power conversion topologies. The series emphasizes low reverse recovery time and soft recovery behavior to reduce noise and improve overall system efficiency in modern power electronic applications.

Replacement Considerations

Potential substitutes include the MUR3050PT or RURD650 depending on specific current and voltage derating needs. Verify pinout compatibility and thermal resistance values before substitution. Check for equivalent reverse recovery time and forward voltage specifications to maintain circuit performance.