Resettable Fuses

Resettable surface fuses are a reusable type of circuit protection device that is utilised in a wide range of applications. Resettable fuses trip when the current gets too high but will function again when conditions return to an acceptable level.

Types of resettable fuses

There are a variety of resettable fuses to choose from, depending on the type of application required. Some of the most common types of resettable fuses include:

SMD (surface mount) resettable fuses – These form part of the circuit on a PCB (printed circuit board), allowing electrical current to flow through them. When a fault such as overcurrent is detected in the circuit, they are tripped, forcing a break in the circuit which prevents electricity from continuing to flow. This prevents any damage to the circuit or attached devices. Unlike non-resettable surface mount fuses, they can be used over and over, as they will reconnect the circuit when conditions return to normal.

Wire Ended – These resettable fuses are suitable for use with a range of electrical equipment including automotive, security systems and telecommunications. They offer protection of electrical and electronic circuits against excessive currents. These resettable fuses are maintenance free and can automatically reset themselves. Wire ended resettable fuses are also available in leaded PCB mount varieties.


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Beskrivning Pris Trip Current Voltage Rating Time to Trip Hold Current Maximum Current Length Height Width Terminal Material Minimum Resistance Maximum Resistance Power Dissipation Minimum Operating Temperature Maximum Operating Temperature
RS-artikelnummer 647-8544
Tillv. art.nrMF-R135
VarumärkeBourns
3,818 kr
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2.7A 30V 7.3s 1.35A 40 A 8.9mm 18.9mm 3mm - 0.065Ω 170mΩ 0.8W -40°C +85°C
RS-artikelnummer 647-8522
Tillv. art.nrMF-R110
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3,391 kr
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2.2A 30V 6.6s 1.1A 40 A 8.9mm 14mm 3mm - 0.1Ω 270mΩ 0.7W -40°C +85°C
RS-artikelnummer 712-7486
Tillv. art.nrRKEF050
VarumärkeLittelfuse
3,988 kr
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1A 60V 0.8s 0.5A 40 A 7.1mm 11.43mm 3.56mm - 0.32Ω 900mΩ 1W - -
RS-artikelnummer 517-7032
Tillv. art.nrSMD050F-2
VarumärkeLittelfuse
5,428 kr
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1A 60V 4s 0.5A 10 A 7.98mm 3.18mm 5.44mm - 0.35Ω 1.4Ω 1.7W - +85°C
RS-artikelnummer 517-6691
Tillv. art.nrRXEF135
VarumärkeLittelfuse
9,747 kr
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2.7A 72V 9.6s 1.35A 40 A 14.5mm 19.1mm 3mm - 0.12Ω 300mΩ 1.7W - -
RS-artikelnummer 546-3030
Tillv. art.nrMICROSMD010F-2
VarumärkeLittelfuse
3,738 kr
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250mA 30V dc 1s 0.1A 10 A 3.43mm 0.85mm 2.8mm - 2.1Ω 15Ω 0.8W - +85°C
RS-artikelnummer 517-6786
Tillv. art.nrRUEF135
VarumärkeLittelfuse
3,978 kr
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2.7A 30V dc 7.3s 1.35A 100 A 8.9mm 13.5mm 3mm - 0.04Ω 130mΩ 0.8W - -
RS-artikelnummer 517-6792
Tillv. art.nrRUEF160
VarumärkeLittelfuse
3,988 kr
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3.2A 30V dc 8s 1.6A 100 A 8.9mm 15.2mm 3mm - 0.03Ω 110mΩ 0.9W - -
RS-artikelnummer 647-8588
Tillv. art.nrMF-R185
VarumärkeBourns
3,572 kr
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3.7A 30V 8.7s 1.85A 40 A 12mm 18.4mm 3mm - 0.04Ω 110mΩ 1W -40°C +85°C
RS-artikelnummer 647-8550
Tillv. art.nrMF-R160
VarumärkeBourns
3,327 kr
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3.2A 30V 8s 1.6A 40 A 10.2mm 16.8mm 3mm - 0.055Ω 150mΩ 0.9W -40°C +85°C
RS-artikelnummer 517-7240
Tillv. art.nrMICROSMD050F-2
VarumärkeLittelfuse
4,165 kr
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1A 13.2V dc 0.05s 0.5A 40 A 3.43mm 0.62mm 2.8mm - 0.25Ω 900mΩ 0.8W - +85°C
RS-artikelnummer 517-6950
Tillv. art.nrRGEF700
VarumärkeLittelfuse
7,678 kr
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11.9A 16V 3.5s 7A 100 A 11.2mm 19.7mm 3mm - 0.008Ω 20mΩ 3W - -
RS-artikelnummer 517-7026
Tillv. art.nrSMD030F-2
VarumärkeLittelfuse
5,513 kr
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600mA 60V 3s 0.3A 10 A 7.98mm 3.18mm 5.44mm - 1.2Ω 4.8Ω 1.7W - +85°C
RS-artikelnummer 517-6837
Tillv. art.nrRUEF400
VarumärkeLittelfuse
5,385 kr
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8A 30V dc 12.7s 4A 100 A 14mm 19.3mm 3mm - 0.01Ω 50mΩ 2.5W - -
RS-artikelnummer 787-4268
Tillv. art.nr2920L050DR
VarumärkeLittelfuse
7,23 kr
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1A 60V dc 4s 0.5A 10 A 7.98mm 1.25mm 5.44mm Tin Plated Copper 0.35Ω 1.4Ω 1.5W -40°C +85°C
RS-artikelnummer 517-6809
Tillv. art.nrRUEF185
VarumärkeLittelfuse
5,716 kr
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3.7A 30V dc 8.7s 1.85A 100 A 10.2mm 15.7mm 3mm - 0.03Ω 90mΩ 1W - -
RS-artikelnummer 517-6815
Tillv. art.nrRUEF250
VarumärkeLittelfuse
4,266 kr
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5A 30V dc 10.3s 2.5A 100 A 11.4mm 18.3mm 3mm - 0.02Ω 70mΩ 1.2W - -
RS-artikelnummer 164-8219
Tillv. art.nrMINISMDC030F-2
VarumärkeLittelfuse
6 460,87 kr
1 Tape of 2000
Tape(s)
600mA 30V dc 0.1s 0.3A 40 A 3.41mm 4.73mm 0.89mm Tin 0.2Ω 750mΩ 0.8W -40°C +85°C
RS-artikelnummer 517-6966
Tillv. art.nrRGEF800
VarumärkeLittelfuse
8,916 kr
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13.6A 16V 5s 8A 100 A 12.7mm 20.9mm 3mm - 0.006Ω 18mΩ 3W - -
RS-artikelnummer 517-6922
Tillv. art.nrRGEF500
VarumärkeLittelfuse
8,318 kr
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8.5A 16V 2s 5A 100 A 10.4mm 14.3mm 3mm - 0.015Ω 34mΩ 2.6W - -