Littelfuse
Littelfuse is the global leader in circuit protection, offering the broadest portfolio of fuses, TVS diodes, varistors, gas discharge tubes, and polymer PTC devices in the industry. Beyond protection, Littelfuse manufactures power semiconductors (thyristors, IGBTs, MOSFETs), sensor switches, and relay products for automotive, industrial, telecom, and consumer electronics applications where system uptime and safety are non-negotiable.
- 100% Original & New
- Global Supply Support
- Competitive Pricing
- Fast RFQ Response
About Littelfuse
Littelfuse Product Lines
Explore Littelfuse's extensive product portfolio by major product area.
Embedded Processing
Littelfuse Embedded Processing products, with 1,110 cataloged parts available for sourcing review and RFQ support.
Circuit Protection
Littelfuse Circuit Protection products, with 739 cataloged parts available for sourcing review and RFQ support.
Discrete Semiconductors
Littelfuse Discrete Semiconductors products, with 62 cataloged parts available for sourcing review and RFQ support.






