Resettable Surface Mount Fuses

Resettable surface mount fuses are a reusable type of circuit protection device that is able to be mounted onto printed circuit boards. They trip when the current gets too high, but will function again when conditions return to an acceptable level.

How do resettable surface mount fuses work?

Resettable surface mount fuses 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.

Types of resettable surface mount fuses

Resettable surface mount fuses have a number of characteristics that can vary between models, including terminal material, voltage rating and their operating temperature range. They also come in various different sizes.


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Description Price 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 Stock No. 867-5261
Mfr. Part No.MINISMDC075F/24-2
BrandLittelfuse
€0.294
Each (In a Bag of 10)
units
1.5A 24V dc 0.3s 0.75A 40 A 3.41mm 4.83mm 1.46mm Tin 0.09Ω 290mΩ 0.8W -40°C +85°C
RS Stock No. 517-7105
Mfr. Part No.MINISMDC020F-2
BrandLittelfuse
€0.271
Each (In a Pack of 10)
units
400mA 30V dc 0.02s 0.2A 10 A 4.73mm 0.89mm 3.41mm - 0.6Ω 3.3Ω 0.8W - +85°C
RS Stock No. 517-7234
Mfr. Part No.MICROSMD035F-2
BrandLittelfuse
€0.268
Each (In a Pack of 20)
units
750mA 6V dc 0.2s 0.35A 40 A 3.43mm 0.62mm 2.8mm - 0.32Ω 1.3Ω 0.8W - +85°C
RS Stock No. 164-8219
Mfr. Part No.MINISMDC030F-2
BrandLittelfuse
€585.37
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 Stock No. 867-5264
Mfr. Part No.MINISMDC030F-2
BrandLittelfuse
€0.211
Each (In a Bag of 10)
units
- 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 Stock No. 517-7032
Mfr. Part No.SMD050F-2
BrandLittelfuse
€0.286
Each (In a Pack of 10)
units
1A 60V 4s 0.5A 10 A 7.98mm 3.18mm 5.44mm - 0.35Ω 1.4Ω 1.7W - +85°C
RS Stock No. 657-1766
Mfr. Part No.NANOSMDC035F
BrandLittelfuse
€0.305
Each (In a Pack of 10)
units
750mA 16V dc 0.1s 0.35A 20 A 3.4mm 0.82mm 1.8mm - 0.45Ω 1.35Ω 0.6W - +85°C
RS Stock No. 867-5255
Mfr. Part No.MINISMDC014F-2
BrandLittelfuse
€0.195
Each (In a Bag of 10)
units
- 60V dc 0.008s 0.14A 10 A 3.41mm 4.73mm 0.89mm Tin 1.5Ω 0.75W -40°C +85°C
RS Stock No. 164-8218
Mfr. Part No.MINISMDC014F-2
BrandLittelfuse
€335.79
1 Tape of 2000
Tape(s)
280mA 60V dc 0.008s 0.14A 10 A 3.41mm 4.73mm 0.89mm Tin 1.5Ω 0.75W -40°C +85°C
RS Stock No. 494-723
Mfr. Part No.ZEN056V130A24LS
BrandLittelfuse
€1.21
Each (In a Pack of 5)
units
- 24V 0.1s 1.3A 3 A 4.15mm 2mm 4.15mm - 0.12Ω 160mΩ 0.7W -40°C +85°C
RS Stock No. 546-3030
Mfr. Part No.MICROSMD010F-2
BrandLittelfuse
€0.236
Each (In a Pack of 20)
units
250mA 30V dc 1s 0.1A 10 A 3.43mm 0.85mm 2.8mm - 2.1Ω 15Ω 0.8W - +85°C
RS Stock No. 517-7256
Mfr. Part No.MICROSMD075F-2
BrandLittelfuse
€0.268
Each (In a Pack of 20)
units
1.5A 6V dc 0.1s 0.75A 40 A 3.43mm 0.62mm 2.8mm - 0.11Ω 400mΩ 0.8W - +85°C
RS Stock No. 174-0684
Mfr. Part No.1812L075PR
BrandLittelfuse
€0.367
Each (In a Pack of 20)
units
1.5A 13.2V dc 0.2s 0.75A 100 A 4.73mm 0.75mm 3.41mm Solder Plated Copper 0.1Ω 450mΩ 0.8W -40°C +85°C
RS Stock No. 174-0694
Mfr. Part No.0459003.UR
BrandLittelfuse
€1.08
Each (In a Pack of 10)
units
- 125V - - 3 A 7.24mm 3.05mm 4.32mm Tin Plated Copper - 20mΩ - -55°C +125°C
RS Stock No. 174-0695
Mfr. Part No.0603L020YR
BrandLittelfuse
€1.288
Each (In a Pack of 50)
units
500mA 9V dc 0.6s 0.2A 40 A 1.8mm 0.75mm 1mm Solder Plated Copper 0.55Ω 3.5Ω 0.5W -40°C +85°C
RS Stock No. 787-4215
Mfr. Part No.0603L010YR
BrandLittelfuse
€0.682
Each (In a Pack of 5)
units
- 15V dc 1s 0.1A 40 A 1.8mm 0.75mm 1mm Tin Plated Copper 0.9Ω 0.5W -40°C +85°C
RS Stock No. 174-0766
Mfr. Part No.0805L035YR
BrandLittelfuse
€0.953
Each (In a Pack of 20)
units
750mA 6V dc 0.1s 0.35A 100 A 2.2mm 0.75mm 1.5mm - 0.25Ω 1.2Ω 0.5W -40°C +85°C
RS Stock No. 174-0687
Mfr. Part No.2920L330/24MR
BrandLittelfuse
€1.50
Each (In a Pack of 5)
units
5.5A 24V dc 5s 3.3A 40 A 7.98mm 2mm 5.44mm - 0.01Ω 50mΩ 2W -40°C +85°C
RS Stock No. 174-0704
Mfr. Part No.0251002.MXL
BrandLittelfuse
€0.50
Each (In a Pack of 10)
units
- 125V ac/dc - - 2 A 7.11mm - 2.8 Dia.mm - - 0.04Ω - -55°C +125°C
RS Stock No. 164-8223
Mfr. Part No.MINISMDC150F-2
BrandLittelfuse
€600.00
1 Tape of 2000
Tape(s)
3A 6V dc 0.5s 1.5A 100 A 3.41mm 4.73mm 0.48mm Tin 0.04Ω 110mΩ 0.8W -40°C +85°C