Why Choose Littelfuse Products and Solutions?

Littelfuse is the world’s leading provider of circuit protection solutions with unparalleled product depth and breadth. We supply overcurrent products such as fuses and resettable PTCs as well as overvoltage products including PulseGuard® polymer electrostatic discharge (ESD) suppressors, Gas Discharge Tubes (GDTs), silicon avalanche diodes (SADs), surface mount multilayer varistors (MLVs), metal oxide varistors (MOVs) and UL recognized Teccor brand SIDACtor® protection thyristors.

Let us help you make the proper choice and select the product that is right for your application. Here you can search by:

• Part Number - for users already using or familiar with Littelfuse Part nomenclature (ex. 0434002. or 0434002.NRD).
• Series Type – for users who know our product families but not specific part numbers.
• Competitor Part Number – for users who would like to find a Littelfuse replacement for a competitor’s part number.
• Distributor Inventory – for users who know our product series or part numbers and wish to check distributor inventory and/or availability.