Q2-Class Series - 500V - 1000V N-Channel Power MOSFETs with Fast Intrinsic Diodes (HiPerFETs)

Q2 Class
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Q2 Class HiPerFET™ MOSFETs feature switching efficiencies that enable high frequency operation and small power supplies. These devices combine the advantages of a low gate charge with a double-metal construction, resulting in a line of MOSFETs with an intrinsic gate resistance that is much lower than seen in conventional MOSFETs.


  • International standard packages
  • Double metal process for low gate resistance
  • Avalanche energy and current rated
  • Fast intrinsic rectifier
  • Low package inductance


  • DC-DC converters
  • Battery chargers
  • Switched-mode and resonant-mode power supplies
  • Pulse generation
  • Laser drivers


  • Easy to mount
  • High power density
  • Space savings

Access specifications, certifications, check availability and order parts below

Catalog #VDSS (V)RDS(ON),max @ 25 ℃ (Ohm)ID, cont @ 25 ℃ (A)Gate Charge (nC)RthJC (K/W)ConfigurationPackage TypeStatusCISS (pF)PD (W)trr,max (ns)Replaced By PartObsolete DatePart DatasheetSPICE ModelStockSamplesCompare
IXFB38N100Q210000.25038.02500.14SinglePLUS264™NOT FOR NEW DESIGNS13500890300PartSPICECheckOrder
IXFB50N80Q28000.16050.02600.11SinglePLUS264™NOT FOR NEW DESIGNS72001135300PartSPICEOrder
IXFB70N60Q26000.08870.02650.14SinglePLUS264™NOT FOR NEW DESIGNS12000890250PartSPICEOrder
Replaced By: IXFB100N50Q3
5000.06080.02500.13SinglePLUS264™NOT FOR NEW DESIGNS15000960250IXFB100N50Q3PartSPICECheckOrder
IXFH14N100Q210000.95014.0830.25SingleTO-247NOT FOR NEW DESIGNS2800500300PartSPICEOrder
IXFK38N80Q28000.22038.01900.17SingleTO-264NOT FOR NEW DESIGNS9500735250Part Order
5000.08066.02000.17SingleTO-264PHASE OUT/OBSOLETE9125735250NAPart CheckOrder
IXFL38N100Q210000.28029.02500.33SinglePLUS264™NOT FOR NEW DESIGNS13500380300Part Order
IXFL80N50Q25000.06655.02500.33SinglePLUS264™NOT FOR NEW DESIGNS12800380250Part Order
IXFN38N100Q210000.25038.02500.14SingleSOT-227NOT FOR NEW DESIGNS13500890300PartSPICEOrder
IXFN38N80Q28000.22038.01900.17SingleSOT-227NOT FOR NEW DESIGNS9500735250Part Order
IXFN50N80Q28000.16050.02600.11SingleSOT-227NOT FOR NEW DESIGNS135001135300PartSPICEOrder
5000.08066.02000.17SingleSOT-227PHASE OUT/OBSOLETE9125735250NAPart 
IXFN70N60Q26000.08870.02650.14SingleSOT-227NOT FOR NEW DESIGNS12000890250PartSPICEOrder
IXFN80N50Q25000.06572.02500.14SingleSOT-227NOT FOR NEW DESIGNS12800890250PartSPICEOrder
IXFR14N100Q210001.1009.5830.62SinglePLUS247™NOT FOR NEW DESIGNS2800200300Part Order
IXFR38N80Q28000.24028.01900.25SinglePLUS247™NOT FOR NEW DESIGNS9500500250PartSPICEOrder
IXFX38N80Q28000.22038.01900.17SinglePLUS247™NOT FOR NEW DESIGNS9500735250PartSPICECheckOrder
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