GaN Systems - GS66508T-E02-B

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The GS66508T is an enhancement mode GaN-on-silicon power transistor. The properties of GaN allow for high current, high voltage breakdown and high switching frequency. GaN Systems implements patented Island Technology® cell layout for high-current die performance & yield. GaNPX™ packaging enables low inductance & low thermal resistance in a small package. The GS66508T is a top-side cooled transistor that offers very low junction-to-case thermal resistance for demanding high power applications. These features combine to provide very high efficiency power switching.


  • 650 V enhancement mode power switch
  • Top-side cooled configuration
  • RDS(on) = 50 mΩ
  • IDS(max) = 30 A
  • Ultra-low FOM Island Technology™ die
  • Low inductance GaNPX™ package
  • Easy gate drive requirements (0 V to 6 V)
  • Transient tolerant gate drive (-20 / +10V )
  • Very high switching frequency (> 100 MHz)
  • Fast and controllable fall and rise times
  • Reverse current capability
  • Zero reverse recovery loss
  • Small 6.9 x 4.5 mm² PCB footprint
  • Dual gate pads for optimal board layout
  • RoHS 6 compliant



  • High efficiency power conversion
  • High density power conversion
  • AC-DC Converters
  • Bridgeless Totem Pole PFC
  • ZVS Phase Shifted Full Bridge
  • Half Bridge topologies
  • Synchronous Buck or Boost
  • Uninterruptable Power Supplies
  • Industrial Motor Drives
  • Single and 3Φ inverter legs
  • Solar and Wind Power
  • Fast Battery Charging
  • Class D Audio amplifiers
  • 400 V input DC-DC converters
  • On Board Battery Chargers
  • Traction Drive