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Littelfuse products are vital components in virtually every market that uses electrical energy, from consumer electronics to automobiles, commercial vehicles and industrial equipment. Our history of innovation, proven technical expertise and the industry’s broadest and deepest portfolio of circuit protection products enable us to provide objective, comprehensive solutions for each customer’s unique needs. We are also expanding into adjacent markets that complement our core business including power distribution centers for mining operations, generator controls and protection for marine applications, heavy-duty switches for commercial vehicles and electromechanical sensors used in the automotive industry.

  • Fuses
  • Fuse Blocks Fuseholders and Fuse Accessories TVS Diodes
  • TVS Diodes TVS Diode Arrays
  • TVS Diode Arrays Resettable PTCs
  • Resettable PTCs LED Protectors
  • LED Protectors
  • Relays, Controls and Systems
  • Custom-Engineered Electrical Equipment
  • Custom Panels and Switches GDTs
  • Gas Discharge Tubes Switching Thyristors
  • Switching Thyristors PULSE-GUARD ESD SUPPRESSORS
  • PulseGuard ESD Suppressors Sidactor Protection Thyristors
  • SIDACtor Protection Thyristors
  • Shock-Block GFCI Varistors
  • Varistors
  • Misc Electrical Products and Accessories Power_Semiconductors
  • Power Semiconductors