Infineon CoolSiC™ JFET — Enabling Next-Generation Solid-State Power Distribution

Upgrade protection and switching architectures with CoolSiC™ JFET technology designed for robust, efficient solid-state solutions — supported jointly by EBV Elektronik and Infineon.
 

Why Solid-State Power Distribution

The transition to digitalized power distribution demands a new generation of protection devices, with solid-state circuit breakers (SSCBs) leading the way. Modern power systems are shifting from mechanical switching to solid-state architectures to achieve faster, smarter, and more controllable protection. Infineon’s CoolSiC™ JFET technology rises to this challenge by combining the advantages of silicon carbide with innovative packaging and advanced chip design—delivering unmatched efficiency, robustness, and reliability for the most demanding next-generation power distribution.
 

Why CoolSiC™ JFET from Infineon

Infineon’s CoolSiC™ JFET technology is designed to meet the growing demand for high-performance, solid-state power distribution and protection—especially in rapidly evolving environments such as AI data centers and advanced industrial systems.

With an expanding portfolio covering 750 V and 1200 V classes, CoolSiC™ JFET enables system designers to push efficiency and reliability to the next level. Extremely low on-resistance values—down to 1.6 mΩ—help minimize conduction losses, making the devices ideal for high-current applications while enabling drop-in replacement of existing SiC MOSFET designs without requiring PCB redesign.

Infineon’s advanced .XT interconnection technology ensures improved thermal performance and high robustness under pulsed and cyclic loads. This makes them highly reliable even under overload and fault conditions.

Compared to electromechanical solutions, CoolSiC™ JFET-based solid-state designs enable higher switching speeds. This allows rapid fault isolation, reduces system damage risk, minimizes downtime, and contributes to longer system lifetime—key advantages for mission-critical applications.

Overall, Infineon’s CoolSiC™ JFET combines:

• High efficiency with minimized conduction and switching losses
• Robust operation in harsh electrical and thermal environments
• Fast, reliable solid-state protection
• Flexible integration thanks to broad package and configuration options
   

Target Applications

CoolSiC™ JFET is designed for next-generation solid-state power architectures where speed, efficiency, and reliability are critical. 

• AI data centers: Enables efficient and reliable power distribution in PSUs, PBUs, IBC stages, and hot-swap or eFuse designs—supporting high power density and uptime.
• Solid-state protection: Ideal for SSCBs, electronic relays, and smart power distribution systems, replacing mechanical solutions with faster, more reliable switching.
• Industrial power systems: Supports battery management, disconnect switches, and high-current distribution applications requiring both robust conduction and rapid fault isolation.

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