IXFH21N50Q - Q-Class Series

Series: Q-Class
Availability: Obsolete


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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.

The Q-Class series devices are popular Power MOSFETs (HiPerFET™) for both hard switching and resonant mode applications, offering low gate charge and excellent ruggedness with a fast intrinsic diode. They are available in many standard industrial packages including isolated types.


  • International standard packages
  • Rugged polysilicon gate cell structure
  • Rated for Unclamped Inductive Load Switching (UIS)
  • Fast intrinsic Rectifier


  • DC-DC converters
  • Battery chargers
  • Switched-mode and resonant-mode power supplies
  • DC choppers
  • AC motor control


  • Easy assembly
  • High Power density
  • Space savings
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