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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 4569 products. Showing up to 30 products per page (153 pages).

Subcategories

Circuit Protection

Switches & Relays

Connectors

Semiconductors - Discretes

Sensors & Transducers

Transformers

Automation & Process Control

Passive Components

Price range

QJ8030LH4TP: Triac, 800 V, 30 A, TO-220AB, 1 V, 290 A, 60 mA
Littelfuse QJ8030LH4TP

Triac, 800 V, 30 A, TO-220AB, 1 V, 290 A, 60 mA

2.22 EUR/unit
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Littelfuse QJ8040JH6TP

Triac, 800 V, 40 A, TO-218X, 1.3 V, 420 A, 80 mA

4.17 EUR/unit
QJ8040K3TP: Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 60 mA
Littelfuse QJ8040K3TP

Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 60 mA

6.39 EUR/unit
QJ8040K4TP: Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 80 mA
Littelfuse QJ8040K4TP

Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 80 mA

6.51 EUR/unit
QJ8040KH5TP: Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 75 mA
Littelfuse QJ8040KH5TP

Triac, 800 V, 40 A, TO-218AC, 1.3 V, 420 A, 75 mA

6.51 EUR/unit
QK040K7TP: Triac, Teccor®, 1 kV, 40 A, TO-218AC, 2 V, 335 A, 100 mA
Littelfuse QK040K7TP

Triac, Teccor®, 1 kV, 40 A, TO-218AC, 2 V, 335 A, 100 mA

6.35 EUR/unit
QV6016LH4TP: Triac, 600 V, 16 A, TO-220AB, 1.3 V, 167 A, 50 mA
Littelfuse QV6016LH4TP

Triac, 600 V, 16 A, TO-220AB, 1.3 V, 167 A, 50 mA

1.76 EUR/unit
QV6016NH4RP: Triac, 600 V, 16 A, TO-263 (D2PAK), 1.3 V, 167 A, 50 mA
Littelfuse QV6016NH4RP

Triac, 600 V, 16 A, TO-263 (D2PAK), 1.3 V, 167 A, 50 mA

1.76 EUR/unit
QV6016NH4TP: Triac, 600 V, 16 A, TO-263 (D2PAK), 1.3 V, 167 A, 50 mA
Littelfuse QV6016NH4TP

Triac, 600 V, 16 A, TO-263 (D2PAK), 1.3 V, 167 A, 50 mA

1.76 EUR/unit
QV6016RH4TP: Triac, 600 V, 16 A, TO-220AB, 1.3 V, 167 A, 50 mA
Littelfuse QV6016RH4TP

Triac, 600 V, 16 A, TO-220AB, 1.3 V, 167 A, 50 mA

1.63 EUR/unit
RF0003-000: Resettable Fuse, PPTC, PolySwitch LVR Series, 240 VAC, 400 mA, 900 mA, 24 s, Rectangular
Littelfuse RF0003-000

Resettable Fuse, PPTC, PolySwitch LVR Series, 240 VAC, 400 mA, 900 mA, 24 s, Rectangular

0.424 EUR/unit
RF0021-000: PTC RESETTABLE FUSE, RECTANGULAR, 60VDC
Littelfuse RF0021-000

PTC RESETTABLE FUSE, RECTANGULAR, 60VDC

0.285 EUR/unit
RF0067-000: Resettable Fuse, PPTC, PolySwitch LVR Series, 240 VAC, 160 mA, 370 mA, 15 s, Round
Littelfuse RF0067-000

Resettable Fuse, PPTC, PolySwitch LVR Series, 240 VAC, 160 mA, 370 mA, 15 s, Round

0.338 EUR/unit
RF0311-000: Resettable Fuse, PPTC, 3425 (8763 Metric), SMD Series, 33 VDC, 1.5 A, 3 A, 5 s
Littelfuse RF0311-000

Resettable Fuse, PPTC, 3425 (8763 Metric), SMD Series, 33 VDC, 1.5 A, 3 A, 5 s

0.187 EUR/unit
RF0318-000: Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMD Series, 30 VDC, 1.1 A, 2.2 A, 0.5 s
Littelfuse RF0318-000

Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMD Series, 30 VDC, 1.1 A, 2.2 A, 0.5 s

0.271 EUR/unit
RF0322-000.: Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMD Series, 6 VDC, 3 A, 6 A, 35 s
Littelfuse RF0322-000.

Resettable Fuse, PPTC, 2920 (7351 Metric), PolySwitch SMD Series, 6 VDC, 3 A, 6 A, 35 s

0.246 EUR/unit
RF1246-000: Resettable Fuse, PPTC, PolySwitch LVR Series, 120 VAC, 80 mA, 190 mA, 10 s, Round
Littelfuse RF1246-000

Resettable Fuse, PPTC, PolySwitch LVR Series, 120 VAC, 80 mA, 190 mA, 10 s, Round

0.391 EUR/unit
RF1342-000: Resettable Fuse, PPTC, 2018 (5045 Metric), PolySwitch decaSMDC Series, 60 VDC, 550 mA, 1.1 A
Littelfuse RF1342-000

Resettable Fuse, PPTC, 2018 (5045 Metric), PolySwitch decaSMDC Series, 60 VDC, 550 mA, 1.1 A

0.352 EUR/unit
RF1345-000: Resettable Fuse, PPTC, 1206 (3216 Metric), PolySwitch nanoSMDC Series, 24 VDC, 200 mA, 420 mA
Littelfuse RF1345-000

Resettable Fuse, PPTC, 1206 (3216 Metric), PolySwitch nanoSMDC Series, 24 VDC, 200 mA, 420 mA

0.178 EUR/unit
RF1352-000: Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 6 VDC, 350 mA, 750 mA
Littelfuse RF1352-000

Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 6 VDC, 350 mA, 750 mA

0.196 EUR/unit
RF1353-000: Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 13.2 VDC, 500 mA, 1 A
Littelfuse RF1353-000

Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 13.2 VDC, 500 mA, 1 A

0.193 EUR/unit
RF1353-000.: Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 13.2 VDC, 500 mA, 1 A
Littelfuse RF1353-000.

Resettable Fuse, PPTC, 1210 (3225 Metric), PolySwitch microSMD Series, 13.2 VDC, 500 mA, 1 A

0.202 EUR/unit
RF1905-000: Resettable Fuse, PPTC, 1812 (4532 Metric), PolySwitch miniSMDC Series, 6 VDC, 3 A, 6 A, 5 s
Littelfuse RF1905-000

Resettable Fuse, PPTC, 1812 (4532 Metric), PolySwitch miniSMDC Series, 6 VDC, 3 A, 6 A, 5 s

0.217 EUR/unit
RF1956-000: Fuse, Surface Mount, 20 A, Very Fast Acting, 65 VAC, 65 VDC, 2410 [6125 Metric]
Littelfuse RF1956-000

Fuse, Surface Mount, 20 A, Very Fast Acting, 65 VAC, 65 VDC, 2410 [6125 Metric]

0.801 EUR/unit
RF2561-000: Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 4 A, 8 A, 12.7 s, Rectangular
Littelfuse RF2561-000

Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 4 A, 8 A, 12.7 s, Rectangular

0.278 EUR/unit
RF2561-000.: Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 4 A, 8 A, 12.7 s, Rectangular
Littelfuse RF2561-000.

Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 4 A, 8 A, 12.7 s, Rectangular

0.231 EUR/unit
RF2568-000: Resettable Fuse, PPTC, PolySwitch RXEF Series, 72 VDC, 650 mA, 1.3 A, 2.5 s, Rectangular
Littelfuse RF2568-000

Resettable Fuse, PPTC, PolySwitch RXEF Series, 72 VDC, 650 mA, 1.3 A, 2.5 s, Rectangular

0.271 EUR/unit
RF2577-000: Resettable Fuse, PPTC, PolySwitch RXEF Series, 60 VDC, 50 mA, 100 mA, 5 s, Round
Littelfuse RF2577-000

Resettable Fuse, PPTC, PolySwitch RXEF Series, 60 VDC, 50 mA, 100 mA, 5 s, Round

0.236 EUR/unit
RF2636-000: PTC RESETTABLE FUSE, RECTANGULAR, 30V
Littelfuse RF2636-000

PTC RESETTABLE FUSE, RECTANGULAR, 30V

0.274 EUR/unit
RF2652-000: Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 6 A, 12 A, 16 s, Rectangular
Littelfuse RF2652-000

Resettable Fuse, PPTC, PolySwitch RUEF Series, 30 VDC, 6 A, 12 A, 16 s, Rectangular

0.438 EUR/unit