Silicon Carbide JFET discretes

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

Overview

Infineon’s CoolSiC™ JFET discretes are designed for advanced solid-state power distribution and protection systems where low conduction losses, fast fault response and high robustness are critical. The portfolio includes 750 V and 1200 V devices in Q-DPAK, TO-247-4 and TOLL packages, plus normally-on, Dual Drive and Cascode options for industrial, infrastructure, automotive and AI data-center applications.

Key Features

  • Ultra-low RDS(on)
  • 750 V and 1200 V portfolio
  • Thermal stability in linear mode
  • High current avalanche capability
  • .XT interconnection technology
  • High thermal performance

Overview

Infineon’s CoolSiC™ JFET discretes are designed for advanced solid-state power distribution and protection systems where low conduction losses, fast fault response and high robustness are critical. The portfolio includes 750 V and 1200 V devices in Q-DPAK, TO-247-4 and TOLL packages, plus normally-on, Dual Drive and Cascode options for industrial, infrastructure, automotive and AI data-center applications.

Key Features

  • Ultra-low RDS(on)
  • 750 V and 1200 V portfolio
  • Thermal stability in linear mode
  • High current avalanche capability
  • .XT interconnection technology
  • High thermal performance

About

CoolSiC™ JFET discrete portfolio

Infineon’s CoolSiC™ JFET discretes are designed for advanced solid-state power distribution and protection applications requiring low conduction losses, fast fault response and reliable operation under demanding conditions. Built on silicon carbide technology, the portfolio supports compact and scalable system designs with high efficiency and robust performance during overload and fault events.

The portfolio includes 750 V and 1200 V devices optimized for high-current applications. With package options such as Q-DPAK, TO-247-4 and TOLL, CoolSiC™ JFET discretes give designers flexibility to address different thermal concepts, assembly requirements, current ratings and gate-drive strategies.

CoolSiC™ JFET discretes are especially suited for applications where power semiconductors operate predominantly in the on-state, while fault events are brief but critical. This makes conduction losses, linear-mode robustness and avalanche capability key design parameters.

Key benefits of CoolSiC™ JFET discretes

CoolSiC™ JFET discretes help reduce conduction losses in high-current protection and distribution paths. Their ultra-low on-resistance supports higher system efficiency and can help reduce cooling effort, system footprint and overall power loss in applications where the device conducts for long operating periods.

Thanks to the inherent robustness of silicon carbide technology, CoolSiC™ JFET discretes support reliable behavior during demanding operating conditions such as overload, transient and fault events. Strong avalanche capability, stable linear-mode operation and robust turn-off behavior make them a strong fit for solid-state circuit breakers, hot-swap systems, eFuse designs and industrial protection equipment.

Infineon combines CoolSiC™ technology expertise, robust packaging and long-standing power semiconductor system know-how to deliver scalable JFET discrete solutions for next-generation solid-state power distribution and protection.

Flexible discrete options for different system architectures

The CoolSiC™ JFET discrete portfolio is designed to support different implementation concepts, gate-drive approaches and assembly requirements. Infineon offers normally-on CoolSiC™ JFETs as well as normally-off configurations such as CoolSiC™ JFET dual drive and CoolSiC™ JFET cascode variants.

Normally-on CoolSiC™ JFET discretes provide direct access to the intrinsic performance of the SiC JFET and are well suited for systems that prioritize ultra-low conduction losses, high current capability and robust fault handling.

Dual Drive configurations provide separate access to the SiC JFET and low-voltage Si MOSFET gates, enabling further minituarization at PCB level. Cascode configurations expose a familiar MOSFET gate-drive interface only and support simplified operation with standard gate drivers.

Package options such as Q-DPAK, TO-247-4 and TOLL allow designers to select the right fit for their thermal concept, layout, assembly process and power level. Q-DPAK supports compact, top-side cooled high-current designs, TO-247-4 offers a widely used through-hole option, and TOLL addresses compact surface-mount power designs.

Applications for CoolSiC™ JFET discretes

CoolSiC™ JFET discretes are ideal for applications where high-voltage power must be switched, protected or disconnected quickly and reliably. Their low conduction losses, fast response and high robustness enable efficient solid-state protection and distribution architectures across industrial, infrastructure, automotive and AI data-center systems.

Typical use cases include solid-state circuit breakers, AI data-center power distribution (hot-swap/e-fuse in IBC and PBU, PSU), industrial power distribution units, solid-state relays and contactors, battery disconnect switches, EV charging systems, renewable-energy infrastructure and motor soft starters.

In these applications, CoolSiC™ JFET discretes help enable fast fault isolation, compact system design, scalable current handling and reliable operation under demanding electrical and thermal conditions.

CoolSiC™ JFET discrete portfolio

Infineon’s CoolSiC™ JFET discretes are designed for advanced solid-state power distribution and protection applications requiring low conduction losses, fast fault response and reliable operation under demanding conditions. Built on silicon carbide technology, the portfolio supports compact and scalable system designs with high efficiency and robust performance during overload and fault events.

The portfolio includes 750 V and 1200 V devices optimized for high-current applications. With package options such as Q-DPAK, TO-247-4 and TOLL, CoolSiC™ JFET discretes give designers flexibility to address different thermal concepts, assembly requirements, current ratings and gate-drive strategies.

CoolSiC™ JFET discretes are especially suited for applications where power semiconductors operate predominantly in the on-state, while fault events are brief but critical. This makes conduction losses, linear-mode robustness and avalanche capability key design parameters.

Key benefits of CoolSiC™ JFET discretes

CoolSiC™ JFET discretes help reduce conduction losses in high-current protection and distribution paths. Their ultra-low on-resistance supports higher system efficiency and can help reduce cooling effort, system footprint and overall power loss in applications where the device conducts for long operating periods.

Thanks to the inherent robustness of silicon carbide technology, CoolSiC™ JFET discretes support reliable behavior during demanding operating conditions such as overload, transient and fault events. Strong avalanche capability, stable linear-mode operation and robust turn-off behavior make them a strong fit for solid-state circuit breakers, hot-swap systems, eFuse designs and industrial protection equipment.

Infineon combines CoolSiC™ technology expertise, robust packaging and long-standing power semiconductor system know-how to deliver scalable JFET discrete solutions for next-generation solid-state power distribution and protection.

Flexible discrete options for different system architectures

The CoolSiC™ JFET discrete portfolio is designed to support different implementation concepts, gate-drive approaches and assembly requirements. Infineon offers normally-on CoolSiC™ JFETs as well as normally-off configurations such as CoolSiC™ JFET dual drive and CoolSiC™ JFET cascode variants.

Normally-on CoolSiC™ JFET discretes provide direct access to the intrinsic performance of the SiC JFET and are well suited for systems that prioritize ultra-low conduction losses, high current capability and robust fault handling.

Dual Drive configurations provide separate access to the SiC JFET and low-voltage Si MOSFET gates, enabling further minituarization at PCB level. Cascode configurations expose a familiar MOSFET gate-drive interface only and support simplified operation with standard gate drivers.

Package options such as Q-DPAK, TO-247-4 and TOLL allow designers to select the right fit for their thermal concept, layout, assembly process and power level. Q-DPAK supports compact, top-side cooled high-current designs, TO-247-4 offers a widely used through-hole option, and TOLL addresses compact surface-mount power designs.

Applications for CoolSiC™ JFET discretes

CoolSiC™ JFET discretes are ideal for applications where high-voltage power must be switched, protected or disconnected quickly and reliably. Their low conduction losses, fast response and high robustness enable efficient solid-state protection and distribution architectures across industrial, infrastructure, automotive and AI data-center systems.

Typical use cases include solid-state circuit breakers, AI data-center power distribution (hot-swap/e-fuse in IBC and PBU, PSU), industrial power distribution units, solid-state relays and contactors, battery disconnect switches, EV charging systems, renewable-energy infrastructure and motor soft starters.

In these applications, CoolSiC™ JFET discretes help enable fast fault isolation, compact system design, scalable current handling and reliable operation under demanding electrical and thermal conditions.

Documents

Design resources

Developer Community

{ "ctalist":[ { "link" : "https://community.infineon.com/t5/forums/postpage/choose-node/true", "label" : "Ask the community ", "labelEn" : "Ask the community " }, { "link" : "https://community.infineon.com/t5/Forums/ct-p/products", "label" : "View all discussions ", "labelEn" : "View all discussions " } ] }