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

Q2 Class
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Disclaimer Notice

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 ModelStockCompare
IXFB38N100Q210000.25038.02500.14SinglePLUS264™NOT FOR NEW DESIGNS13500890300PartSPICECheck
IXFB50N80Q28000.16050.02600.11SinglePLUS264™NOT FOR NEW DESIGNS72001135300PartSPICE
IXFB70N60Q26000.08870.02650.14SinglePLUS264™NOT FOR NEW DESIGNS12000890250PartSPICE
Replaced By: IXFB100N50Q3
5000.06080.02500.13SinglePLUS264™NOT FOR NEW DESIGNS15000960250IXFB100N50Q3PartSPICECheck
IXFH14N100Q210000.95014.0830.25SingleTO-247NOT FOR NEW DESIGNS2800500300PartSPICE
IXFK38N80Q28000.22038.01900.17SingleTO-264NOT FOR NEW DESIGNS9500735250Part 
5000.08066.02000.17SingleTO-264PHASE OUT/OBSOLETE9125735250NAPart Check
IXFL38N100Q210000.28029.02500.33SinglePLUS264™NOT FOR NEW DESIGNS13500380300Part 
IXFL80N50Q25000.06655.02500.33SinglePLUS264™NOT FOR NEW DESIGNS12800380250Part 
IXFN38N100Q210000.25038.02500.14SingleSOT-227NOT FOR NEW DESIGNS13500890300PartSPICE
IXFN38N80Q28000.22038.01900.17SingleSOT-227NOT FOR NEW DESIGNS9500735250Part 
IXFN50N80Q28000.16050.02600.11SingleSOT-227NOT FOR NEW DESIGNS135001135300PartSPICE
5000.08066.02000.17SingleSOT-227PHASE OUT/OBSOLETE9125735250NAPart 
IXFN70N60Q26000.08870.02650.14SingleSOT-227NOT FOR NEW DESIGNS12000890250PartSPICE
IXFN80N50Q25000.06572.02500.14SingleSOT-227NOT FOR NEW DESIGNS12800890250PartSPICE
IXFR14N100Q210001.1009.5830.62SinglePLUS247™NOT FOR NEW DESIGNS2800200300Part 
IXFR38N80Q28000.24028.01900.25SinglePLUS247™NOT FOR NEW DESIGNS9500500250PartSPICE
IXFX30N100Q210000.40030.01860.17SinglePLUS247™NOT FOR NEW DESIGNS9400735300Part Check
IXFX38N80Q28000.22038.01900.17SinglePLUS247™NOT FOR NEW DESIGNS9500735250PartSPICECheck