UnitedSiC / Qorvo UF3N170400B7S 1700V-400mW SiC Normally-on JFET

UnitedSiC / Qorvo UF3N170400B7S 1700V-400mW SiC Normally-on JFET exhibits ultra-low on-resistance (RDS(ON)) and gate charge (QG) that allows low conduction and switching loss. The low RDS(ON) value of this JFET at VGS = 0V is ideal for current protection circuits without the need for active control and for cascode operation. The UF3N170400B7S 1700V-400mW SiC Normally-on JFET offers a low gate charge and low intrinsic capacitance. This FET operates at -55°C to +175°C temperature range, is available in a D2PAK-7L package, and is RoHS compliant, halogen-free, and lead-free. Typical applications include over-current protection circuits, DC-AC inverters, switch-mode power supplies, power factor correction modules, motor drives, and induction heating.


  • Voltage-controlled device
  • Extremely fast switching not dependent on temperature
  • Low gate charge
  • Low intrinsic capacitance
  • D2PAK-7L package
  • RoHS compliant
  • Halogen and lead-free


  • Over-current protection circuits
  • DC-AC inverters
  • Switch-mode power supplies
  • Power factor correction modules
  • Motor drives
  • Induction heating


  • -55°C to +175°C operating temperature range
  • 175°C maximum junction temperature
  • 1700V drain-source voltage
  • 68W power dissipation
  • +245°C reflow soldering temperature
Published: 2021-10-29 | Updated: 2023-05-16