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onsemi UG3SC 1200V 7.6mΩ Combo-FET

onsemi UG3SC 1200V 7.6mΩ Combo-FET combines a 1200V SiC JFET and a low-voltage Si MOSFET in a single TO-247-4L package. This design enables a normally off switch while utilizing the advantages of a normally on SiC JFET. The UG3SC Combo-FET from onsemi offers ultra-low on-resistance [RDS(on)] for reduced conduction losses and the robustness needed for high-energy switching in circuit protection applications.

Features

  • Single-digit RDS(on)
  • Normally-off capability
  • Improved speed control
  • Improved parallel device operation (3+ FETs)
  • +175°C maximum operating temperature
  • High pulse current capability
  • Excellent device robustness 
  • Silver-sintered die attached for excellent thermal resistance

Applications

  • Solid state/semiconductor circuit breakers
  • Solid state/semiconductor relays
  • Battery disconnects
  • Surge protection
  • Inrush current control
  • High power switch mode converters (>25kW)

Circuit Diagram

Application Circuit Diagram - onsemi UG3SC 1200V 7.6mΩ Combo-FET
Published: 2024-09-30 | Updated: 2025-07-25