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

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

UnitedSiC 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


  • -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

more information: https://unitedsic.com/products/sic-jfets/uf3n170400b7s/

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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