Littelfuse
Littelfuse is a US-based world leader in circuit protection. It is known for fuses, TVS diodes, varistors and power semiconductors.
🔍 Search Littelfuse partsCompare live price and stock across distributors for this manufacturer.
Littelfuse stands out with fuses (cartridge, SMD, resettable), TVS diodes, varistors (MOV), gas discharge tubes and power semiconductors. It is a reference brand in overcurrent/overvoltage and ESD protection.
Littelfuse product categories
Explore the component categories this manufacturer is known for.
Featured Littelfuse parts
See all Littelfuse parts →Popular in-catalog parts from this manufacturer — compare price and stock across distributors.
Frequently asked questions
What is Littelfuse known for?+
Littelfuse is known for fuses, TVS diodes, varistors (MOV), gas discharge tubes and power semiconductors; it is a world leader in circuit protection.
How do I protect a circuit's input?+
Use a fuse/PTC against overcurrent, a TVS diode or varistor against overvoltage, and TVS arrays against ESD. Littelfuse offers products for all of these protection layers.
Where can I source Littelfuse parts?+
Littelfuse products are sourced from authorized distributors like Digi-Key, Mouser and Arrow; PartAndStock compares price and stock.
Other manufacturers
All manufacturers →Littelfuse and other brand names are trademarks of their respective owners. PartAndStock claims no official affiliation, partnership or authorized-distributor status; names are used for identification purposes only.