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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 7955 products. Showing up to 30 products per page (266 pages).

Subcategories

Circuit Protection

Switches & Relays

Connectors

Semiconductors - Discretes

Sensors & Transducers

Transformers

Automation & Process Control

Passive Components

Price range

0603L004YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 24 VDC, 40 mA, 120 mA, 1 s
Littelfuse 0603L004YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 24 VDC, 40 mA, 120 mA, 1 s

0.865 EUR/unit
0603L004YR: PPTC RESETTABLE FUSE, 0.04A, 24VDC, 0603
Littelfuse 0603L004YR

PPTC RESETTABLE FUSE, 0.04A, 24VDC, 0603

1.42 EUR/unit
0603L010YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 15 VDC, 100 mA, 300 mA, 1 s
Littelfuse 0603L010YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 15 VDC, 100 mA, 300 mA, 1 s

0.87 EUR/unit
0603L010YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 15 VDC, 100 mA, 300 mA, 1 s
Littelfuse 0603L010YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 15 VDC, 100 mA, 300 mA, 1 s

0.87 EUR/unit
0603L020YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 9 VDC, 200 mA, 500 mA, 0.6 s
Littelfuse 0603L020YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 9 VDC, 200 mA, 500 mA, 0.6 s

0.896 EUR/unit
0603L020YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 9 VDC, 200 mA, 500 mA, 0.6 s
Littelfuse 0603L020YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 9 VDC, 200 mA, 500 mA, 0.6 s

0.896 EUR/unit
0603L035YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 350 mA, 750 mA, 0.1 s
Littelfuse 0603L035YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 350 mA, 750 mA, 0.1 s

0.576 EUR/unit
0603L035YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 350 mA, 750 mA, 0.1 s
Littelfuse 0603L035YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 350 mA, 750 mA, 0.1 s

0.576 EUR/unit
0603L050SLYESR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050SLYESR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.417 EUR/unit
0603L050SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.699 EUR/unit
0603L050SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.699 EUR/unit
0603L050SLYR.: FUSE, RESETTABLE PTC, 6VDC, 500mA, SMD
Littelfuse 0603L050SLYR.

FUSE, RESETTABLE PTC, 6VDC, 500mA, SMD

1.06 EUR/unit
0603L050YESR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050YESR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.417 EUR/unit
0603L050YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.705 EUR/unit
0603L050YR: FUSE, RESETTABLE PTC, 0603, 6VDC, 500mA
Littelfuse 0603L050YR

FUSE, RESETTABLE PTC, 0603, 6VDC, 500mA

1.06 EUR/unit
0603L050YR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s
Littelfuse 0603L050YR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch 0603L Series, 6 VDC, 500 mA, 1 A, 0.1 s

0.705 EUR/unit
0603L075SLYESR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s
Littelfuse 0603L075SLYESR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s

0.417 EUR/unit
0603L075SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s
Littelfuse 0603L075SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s

1.4 EUR/unit
0603L075SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s
Littelfuse 0603L075SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 750 mA, 1.5 A, 0.2 s

1.47 EUR/unit
0603L100SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1 A, 1.8 A, 0.3 s
Littelfuse 0603L100SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1 A, 1.8 A, 0.3 s

0.675 EUR/unit
0603L100SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1 A, 1.8 A, 0.3 s
Littelfuse 0603L100SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1 A, 1.8 A, 0.3 s

0.675 EUR/unit
0603L150SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.5 A, 3 A, 0.5 s
Littelfuse 0603L150SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.5 A, 3 A, 0.5 s

0.693 EUR/unit
0603L150SLYR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.5 A, 3 A, 0.5 s
Littelfuse 0603L150SLYR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.5 A, 3 A, 0.5 s

0.693 EUR/unit
0603L150SLYR.: PPTC RESETTABLE FUSE, 1.5A, 6VDC, SMD
Littelfuse 0603L150SLYR.

PPTC RESETTABLE FUSE, 1.5A, 6VDC, SMD

1.06 EUR/unit
0603L175SLYESR: Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.75 A, 3.5 A, 0.6 s
Littelfuse 0603L175SLYESR

Resettable Fuse, PPTC, 0603 (1608 Metric), PolySwitch Low Rho Series, 6 VDC, 1.75 A, 3.5 A, 0.6 s

0.417 EUR/unit
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Littelfuse 0603L175SLYR

FUSE, RESETTABLE PTC, 6VDC, 1.75A, SMD

1.06 EUR/unit
0603SFF050F/32-2: Fuse, Surface Mount, 500 mA, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series
Littelfuse 0603SFF050F/32-2

Fuse, Surface Mount, 500 mA, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series

0.691 EUR/unit
0603SFF100F/32-2: Fuse, Surface Mount, 1 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series
Littelfuse 0603SFF100F/32-2

Fuse, Surface Mount, 1 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series

0.983 EUR/unit
0603SFF200F/32-2: Fuse, Surface Mount, 2 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series
Littelfuse 0603SFF200F/32-2

Fuse, Surface Mount, 2 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series

0.445 EUR/unit
0603SFF250F/32-2: Fuse, Surface Mount, 2.5 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series
Littelfuse 0603SFF250F/32-2

Fuse, Surface Mount, 2.5 A, Fast Acting, 32 V, 0603 (1608 Metric), 0603SFF Series

0.408 EUR/unit