LITTELFUSE
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
Found 7985 products. Showing up to 30 products per page (267 pages).
Subcategories
Circuit Protection
- ▶Fuses & Fuse Accessories
- ▶Thermistors
- ▶TVS - Transient Voltage Suppressors
- ▶Gas Discharge Tubes - GDT
- ▶Circuit Breakers
Switches & Relays
Connectors
Semiconductors - Discretes
- ▶Thyristors
- ▶Diodes & Rectifiers
- ▷Standard Recovery Rectifier Diodes
- ▷Small Signal Diodes
- ▷Schottky Diodes
- ▷Bridge Rectifier Diodes
- ▷Fast & Ultrafast Recovery Rectifier Diodes
- ▷Zener Single Diodes
- ▶IGBTs
- ▶FETs
Sensors & Transducers
Transformers
Automation & Process Control
Passive Components
Price range
Resettable Fuse, PPTC, PolySwitch AHEF, 32 VDC, 10 A, 20 A, 15 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RKEF Series, 60 VDC, 900 mA, 1.8 A, 2 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RKEF Series, 60 VDC, 1.35 A, 2.7 A, 4.5 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RKEF Series, 60 VDC, 1.6 A, 3.2 A, 9 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RKEF Series, 60 VDC, 3.75 A, 7.5 A, 22 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RKEF Series, 60 VDC, 5 A, 10 A, 28 s, Rectangular
Resettable Fuse, PPTC, PolySwitch RUSBF Series, 16 VDC, 2.5 A, 5 A, 40 s, Rectangular
Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch femtoSMDC Series, 12 VDC, 100 mA, 250 mA
Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch femtoSMDC Series, 12 VDC, 100 mA, 250 mA
Resettable Fuse, PPTC, PolySwitch 2PRO Series, 430 VDC, 750 mA, 1.5 A, 1.2 s, Round
Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.25 A, 2.5 A, 2 s
Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.25 A, 2.5 A, 2 s
Resettable Fuse, PPTC, 1206 (3216 Metric), nanoSMD Series, 60 VDC, 100 mA, 250 mA, 1 s
Resettable Fuse, PPTC, 1206 (3216 Metric), nanoSMD Series, 60 VDC, 100 mA, 250 mA, 1 s
Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch femtoASMDC Series, 15 VDC, 50 mA, 150 mA
Resettable Fuse, PPTC, 1206 (3216 Metric), PolySwitch nanoASMDC Series, 60 VDC, 100 mA, 250 mA
Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch ASMDC Series, 60 VDC, 500 mA, 1 A, 4 s
Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch ASMDC Series, 33 VDC, 1.25 A, 2.5 A, 2 s