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LITTELFUSE

LITTELFUSE logo

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

Switches & Relays

Connectors

Semiconductors - Discretes

Sensors & Transducers

Transformers

Automation & Process Control

Passive Components

Price range

RF3182-000: Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.85 A, 3.7 A, 2.5 s
Littelfuse RF3182-000

Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.85 A, 3.7 A, 2.5 s

0.315 EUR/unit
RF3182-000: Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.85 A, 3.7 A, 2.5 s
Littelfuse RF3182-000

Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMDC Series, 33 VDC, 1.85 A, 3.7 A, 2.5 s

0.315 EUR/unit
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Littelfuse RF3186-000

PPTC RESETTABLE FUSE, ROUND, 40A, 72V

0.538 EUR/unit
RF3208-000: Resettable Fuse, PPTC, PolySwitch RHEF Series, 30 VDC, 700 mA, 1.4 A, 3.2 s, Rectangular
Littelfuse RF3208-000

Resettable Fuse, PPTC, PolySwitch RHEF Series, 30 VDC, 700 mA, 1.4 A, 3.2 s, Rectangular

0.325 EUR/unit
RF3209-000: PPTC RESETTABLE FUSE, ROUND, 100A, 16VDC
Littelfuse RF3209-000

PPTC RESETTABLE FUSE, ROUND, 100A, 16VDC

0.233 EUR/unit
RF3221-000: Resettable Fuse, PPTC, PolySwitch RGEF Series, 16 VDC, 2.5 A, 4.7 A, 5 s, Rectangular
Littelfuse RF3221-000

Resettable Fuse, PPTC, PolySwitch RGEF Series, 16 VDC, 2.5 A, 4.7 A, 5 s, Rectangular

0.298 EUR/unit
RF3228-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3228-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.366 EUR/unit
RF3237-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3237-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.243 EUR/unit
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Littelfuse RF3242-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.425 EUR/unit
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Littelfuse RF3251-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.443 EUR/unit
RF3256-000: PTC RESETTABLE FUSE, RECTANGULAR, 16VDC
Littelfuse RF3256-000

PTC RESETTABLE FUSE, RECTANGULAR, 16VDC

0.355 EUR/unit
RF3259-000: PTC RESETTABLE FUSE, RECTANGULAR, 16VDC
Littelfuse RF3259-000

PTC RESETTABLE FUSE, RECTANGULAR, 16VDC

0.448 EUR/unit
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Littelfuse RF3261-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.632 EUR/unit
RF3266-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3266-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.586 EUR/unit
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Littelfuse RF3268-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.663 EUR/unit
RF3300-000: Resettable Fuse, PPTC, PolySwitch RHEF Series, 30 VDC, 1 A, 1.8 A, 5.2 s, Round
Littelfuse RF3300-000

Resettable Fuse, PPTC, PolySwitch RHEF Series, 30 VDC, 1 A, 1.8 A, 5.2 s, Round

0.313 EUR/unit
RF3301-000: PPTC RESETTABLE FUSE, ROUND, 40A, 30VDC
Littelfuse RF3301-000

PPTC RESETTABLE FUSE, ROUND, 40A, 30VDC

0.358 EUR/unit
RF3304-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3304-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.292 EUR/unit
RF3305-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3305-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.271 EUR/unit
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Littelfuse RF3312-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.499 EUR/unit
RF3317-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3317-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.576 EUR/unit
RF3321-000: PPTC RESETTABLE FUSE, RECT, 100A, 16VDC
Littelfuse RF3321-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.469 EUR/unit
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Littelfuse RF3322-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.775 EUR/unit
RF3326-000: Resettable Fuse, PPTC, PolySwitch RHEF Series, 16 VDC, 14 A, 27 A, 13 s, Rectangular
Littelfuse RF3326-000

Resettable Fuse, PPTC, PolySwitch RHEF Series, 16 VDC, 14 A, 27 A, 13 s, Rectangular

0.94 EUR/unit
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Littelfuse RF3327-000

PPTC RESETTABLE FUSE, RECT, 100A, 16VDC

0.991 EUR/unit
RF3354-000: PPTC RESETTABLE FUSE, SQUARE, 100A, 16V
Littelfuse RF3354-000

PPTC RESETTABLE FUSE, SQUARE, 100A, 16V

0.687 EUR/unit
RF3355-000: Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 700 mA, 1.4 A, 3.2 s, Rectangular
Littelfuse RF3355-000

Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 700 mA, 1.4 A, 3.2 s, Rectangular

0.423 EUR/unit
RF3356-000: PPTC RESETTABLE FUSE, ROUND, 100A, 32VDC
Littelfuse RF3356-000

PPTC RESETTABLE FUSE, ROUND, 100A, 32VDC

0.281 EUR/unit
RF3357-000: Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 3 A, 6 A, 5 s, Rectangular
Littelfuse RF3357-000

Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 3 A, 6 A, 5 s, Rectangular

0.469 EUR/unit
RF3358-000: Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 5 A, 10 A, 9 s, Rectangular
Littelfuse RF3358-000

Resettable Fuse, PPTC, PolySwitch AHEF Series, 32 VDC, 5 A, 10 A, 9 s, Rectangular

0.715 EUR/unit