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: Very Fast-Acting (FF)

  • PSR Flush End

  • 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 @ 1300 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac, 200 kA @ 700 Vac

  • 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 @ 1300 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac, 200 kA @ 700 Vac

  • 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 @ 1300 Vac, 200 kA @ 600 Vac, 200 kA @ 650 Vac, 200 kA @ 700 Vac

  • 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

  • VDC (V): 750

  • Interrupting Rating: 50 kA @ 750 Vdc

  • 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

  • VAC (V): 700

  • VDC (V): 700

  • 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

  • VAC (V): 500

  • VDC (V): 500