JFETs

Explore Infineon CoolSiC™ JFETs for efficient, robust high-voltage solid-state power distribution.

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A new technology for solid-state power distribution

Infineon’s CoolSiC™ JFET technology expands the CoolSiC™ portfolio with a power semiconductor family designed for advanced solid-state power distribution and protection. By combining silicon carbide material advantages with ultra-low conduction losses and robust behavior under demanding operating conditions, CoolSiC™ JFETs help enable compact, efficient and reliable protection systems.

As power distribution becomes more digital, decentralized and power-dense, conventional electromechanical protection approaches increasingly reach their limits. CoolSiC™ JFETs support the transition toward semiconductor-based protection concepts that can react faster, reduce losses and support scalable high-current system designs.

Highlights of CoolSiC™ JFET technology

CoolSiC™ JFETs are designed for applications where low conduction losses, fast fault response and high robustness are key system requirements. Their technology strengths support demanding protection and distribution concepts in industrial, infrastructure, renewable-energy, battery and data-center power systems.

Key highlights include ultra-low on-resistance, robust turn-off capability, high ruggedness under fault conditions, strong thermal behavior and scalable implementation options for different system architectures.

  • Ultra-low on-resistance for reduced conduction losses
  • Robust turn-off capability for solid-state protection concepts
  • High ruggedness under overload, short-circuit and avalanche conditions
  • Suitable for high-voltage and high-current power distribution systems
  • Scalable implementation across different product concepts and form factors
  • Supported by Infineon’s CoolSiC™ technology and system expertise
From device features to system-level value

CoolSiC™ JFETs help system designers address some of the key challenges in next-generation power distribution: reducing conduction losses, increasing protection speed, improving robustness and enabling compact high-current designs.

Their combination of low on-resistance, fault-condition ruggedness and solid-state switching capability makes them especially relevant for solid-state circuit breakers, electronic fuses, battery disconnect switches, AI data-center power distribution, motor soft starters, industrial safety relays, renewable-energy systems and high-voltage DC distribution.

Explore the CoolSiC™ JFET portfolio

Infineon’s CoolSiC™ JFET portfolio is designed to support different implementation approaches for solid-state power distribution and protection. The portfolio starts with CoolSiC™ JFET discretes and will be expanded for various form factor, system voltage and current requirements

This approach gives designers flexibility to select the right implementation concept depending on system architecture, gate-drive strategy, protection and isolation concept, thermal design, integration and manufacturing requirement.

A new technology for solid-state power distribution

Infineon’s CoolSiC™ JFET technology expands the CoolSiC™ portfolio with a power semiconductor family designed for advanced solid-state power distribution and protection. By combining silicon carbide material advantages with ultra-low conduction losses and robust behavior under demanding operating conditions, CoolSiC™ JFETs help enable compact, efficient and reliable protection systems.

As power distribution becomes more digital, decentralized and power-dense, conventional electromechanical protection approaches increasingly reach their limits. CoolSiC™ JFETs support the transition toward semiconductor-based protection concepts that can react faster, reduce losses and support scalable high-current system designs.

Highlights of CoolSiC™ JFET technology

CoolSiC™ JFETs are designed for applications where low conduction losses, fast fault response and high robustness are key system requirements. Their technology strengths support demanding protection and distribution concepts in industrial, infrastructure, renewable-energy, battery and data-center power systems.

Key highlights include ultra-low on-resistance, robust turn-off capability, high ruggedness under fault conditions, strong thermal behavior and scalable implementation options for different system architectures.

  • Ultra-low on-resistance for reduced conduction losses
  • Robust turn-off capability for solid-state protection concepts
  • High ruggedness under overload, short-circuit and avalanche conditions
  • Suitable for high-voltage and high-current power distribution systems
  • Scalable implementation across different product concepts and form factors
  • Supported by Infineon’s CoolSiC™ technology and system expertise
From device features to system-level value

CoolSiC™ JFETs help system designers address some of the key challenges in next-generation power distribution: reducing conduction losses, increasing protection speed, improving robustness and enabling compact high-current designs.

Their combination of low on-resistance, fault-condition ruggedness and solid-state switching capability makes them especially relevant for solid-state circuit breakers, electronic fuses, battery disconnect switches, AI data-center power distribution, motor soft starters, industrial safety relays, renewable-energy systems and high-voltage DC distribution.

Explore the CoolSiC™ JFET portfolio

Infineon’s CoolSiC™ JFET portfolio is designed to support different implementation approaches for solid-state power distribution and protection. The portfolio starts with CoolSiC™ JFET discretes and will be expanded for various form factor, system voltage and current requirements

This approach gives designers flexibility to select the right implementation concept depending on system architecture, gate-drive strategy, protection and isolation concept, thermal design, integration and manufacturing requirement.

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