Semiconductor Fuses


  • PSX

  • Littelfuse PSX series 1500 V dc high-speed square body fuses are specially designed to protect batte...More

  • Amps (A): 80, 100, 125, 160, 200, 250, 280, 315, 350, 400, 450, 500, 550, 630, 700, 800, 900, 1000, 1100, 1250 more

  • Interrupting Rating: 250 kA @ 1500 Vdc

  • Opening: aBat

  • PSR Flush End

  • High-Speed Square Body Fuses

  • Amps (A): 40, 50, 63, 80, 100, 125, 160, 200, 250, 280, 315, 350, 400, 450, 500, 550, 630, 700, 800, 900 more

  • Interrupting Rating: 100 kA @ 1000 Vac, 100 kA @ 1050 Vac, 100 kA @ 1100 Vac, 100 kA @ 1200 Vac, 100 kA @ 1300 Vac, 100 kA @ 900 Vac, 200 kA @ 500 Vac, 200 kA @ 550 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac more

  • Opening: Very Fast-Acting (FF)

  • PSR Bolted Blade

  • Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power se...More

  • Amps (A): 40, 50, 63, 80, 100, 125, 160, 200, 250, 280, 315, 350, 400, 450, 500, 550, 630, 700, 800, 900 more

  • Interrupting Rating: 100 kA @ 1000 Vac, 100 kA @ 1050 Vac, 100 kA @ 1100 Vac, 100 kA @ 1200 Vac, 100 kA @ 1300 Vac, 100 kA @ 900 Vac, 200 kA @ 500 Vac, 200 kA @ 550 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac more

  • Opening: Very Fast-Acting (FF)

  • PSR DIN Blade

  • Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power se...More

  • Amps (A): 40, 50, 63, 80, 100, 125, 160, 200, 250, 280, 315, 350, 400, 450, 500, 550, 630, 700, 800, 900 more

  • Interrupting Rating: 100 kA @ 1000 Vac, 100 kA @ 1050 Vac, 100 kA @ 1100 Vac, 100 kA @ 1200 Vac, 100 kA @ 1300 Vac, 100 kA @ 900 Vac, 200 kA @ 500 Vac, 200 kA @ 550 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac more

  • Opening: Very Fast-Acting (FF)

  • L75QS

  • The L75QS Series is a next generation High-Speed Fuse for the protection of power semiconductor devi...More

  • Amps (A): 35, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225, 250, 300, 350, 400, 450, 500, 600 more

  • Interrupting Rating: 50 kA @ 750 Vdc

  • Opening: Very Fast-Acting (FF)

  • L70QS

  • The L70QS Series is a next generation High-Speed Fuse for the protection of power semiconductor devi...More

  • Amps (A): 35, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225, 250, 300, 350, 400, 450, 500, 600 more

  • Interrupting Rating: 200 kA @ 700 Vac

  • Opening: Very Fast-Acting (FF)

  • L50QS

  • The L50QS Series is a next generation High-Speed Fuse for the protection of power semiconductor devi...More

  • Amps (A): 35, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350, 400, 450 more

  • Interrupting Rating: 200 kA @ 500 Vac

  • Opening: Very Fast-Acting (FF)

  • L15S

  • Traditional Semiconductor Fuse

  • Amps (A): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60 more

  • Interrupting Rating: 100 kA @ 150 Vac, 20 kA @ 100 Vdc

  • Opening: Very Fast-Acting (FF)

  • L25S

  • Traditional Semiconductor Fuse

  • Amps (A): 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80 more

  • Interrupting Rating: 20 kA @ 200 Vdc, 20 kA @ 250 Vdc

  • Opening: Very Fast-Acting (FF)