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. 870-0935
Mfr. Part No.PFRA.800
BrandSchurter
kr 5,326
Each (In a Pack of 500)
Units
16A 30 V dc 18.8s 8 A 40 A 24.2mm 32.9mm 3mm - 0.005Ω 20mΩ 4W -40°C 85°C
RS Stock No. 870-0919
Mfr. Part No.PFRA.110
BrandSchurter
kr 3,695
Each (In a Pack of 50)
Units
2.2A 30 V dc 6.6s 1.1 A 40 A 8.9mm 14mm 3mm - 0.1Ω 180mΩ 0.7W -40°C 85°C
RS Stock No. 870-0903
Mfr. Part No.PFRA.050
BrandSchurter
kr 2,991
Each (In a Pack of 50)
Units
1A 60 V dc 4s 0.5 A 40 A 7.9mm 13.7mm 3.1mm - 0.41Ω 770mΩ 0.75W -40°C 85°C
RS Stock No. 870-0837
Mfr. Part No.PFMF.010.2
BrandSchurter
kr 1,883
Each (In a Pack of 1500)
Units
- 60 V dc 1.5s 0.1 A 40 A 4.73mm 1.1mm 3.07mm Electroless Nickel 0.7Ω 15Ω 0.8W -40°C +85°C
RS Stock No. 870-0922
Mfr. Part No.PFRA.185
BrandSchurter
kr 3,863
Each (In a Pack of 500)
Units
3.7A 30 V dc 8.7s 1.85 A 40 A 12mm 18.4mm 3mm - 0.04Ω 70mΩ 1W -40°C 85°C
RS Stock No. 870-0856
Mfr. Part No.PFMF.200.2
BrandSchurter
kr 2,868
Each (In a Pack of 2000)
Units
4A 8 V dc 3s 2 A 40 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.02Ω 80mΩ 0.8W -40°C +85°C
RS Stock No. 870-0878
Mfr. Part No.PFNF.110.2
BrandSchurter
kr 2,414
Each (In a Pack of 3000)
Units
2.2A 6 V dc 0.3s 1.1 A 100 A 3.4mm 0.7mm 1.4mm Electroless Nickel 0.06Ω 200mΩ 0.6W -40°C +85°C
RS Stock No. 870-0862
Mfr. Part No.PFNF.035.2
BrandSchurter
kr 2,414
Each (In a Pack of 3000)
Units
- 6 V dc 0.1s 0.35 A 100 A 3.4mm 0.85mm 1.4mm Electroless Nickel 0.3Ω 1.2Ω 0.6W -40°C +85°C
RS Stock No. 870-0843
Mfr. Part No.PFMF.075.2
BrandSchurter
kr 1,873
Each (In a Pack of 2000)
Units
1.5A 13.2 V dc 0.2s 0.75 A 100 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.11Ω 450mΩ 0.8W -40°C +85°C
RS Stock No. 870-0944
Mfr. Part No.PFRA.900
BrandSchurter
kr 5,59
Each (In a Pack of 500)
Units
18A 30 V dc 20s 9 A 40 A 24.2mm 32.9mm 3mm - 0.005Ω 10mΩ 4.2W -40°C 85°C
RS Stock No. 870-0907
Mfr. Part No.PFRA.075
BrandSchurter
kr 2,678
Each (In a Pack of 500)
Units
1.5A 60 V dc 6.3s 0.75 A 40 A 10.4mm 16mm 3.1mm - 0.18Ω 400mΩ 0.9W -40°C 85°C
RS Stock No. 870-0840
Mfr. Part No.PFMF.125.2
BrandSchurter
kr 1,873
Each (In a Pack of 2000)
Units
2.5A 6 V dc 0.4s 1.25 A 100 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.035Ω 140mΩ 0.8W -40°C +85°C
RS Stock No. 870-0830
Mfr. Part No.PFMF.020.2
BrandSchurter
kr 1,894
Each (In a Pack of 100)
Units
- 30 V dc 0.06s 0.2 A 80 A 4.73mm 1.1mm 3.07mm Electroless Nickel 0.4Ω 0.8W -40°C +85°C
RS Stock No. 870-0950
Mfr. Part No.PFSM.075.2
BrandSchurter
kr 3,204
Each (In a Pack of 2000)
Units
1.5A 30 V dc 0.3s 0.75 A 80 A 7.98mm 3.18mm 5.44mm Tin Plated Brass 0.23Ω 1.7W -40°C +85°C
RS Stock No. 870-0846
Mfr. Part No.PFMF.110.2
BrandSchurter
kr 1,873
Each (In a Pack of 2000)
Units
2.2A 6 V dc 0.3s 1.1 A 100 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.04Ω 210mΩ 0.8W -40°C +85°C
RS Stock No. 870-0938
Mfr. Part No.PFRA.400
BrandSchurter
kr 4,487
Each (In a Pack of 500)
Units
8A 30 V dc 12.7s 4 A 40 A 14.4mm 24.8mm 3mm - 0.01Ω 30mΩ 2.5W -40°C 85°C
RS Stock No. 870-0880
Mfr. Part No.PFRA.010
BrandSchurter
kr 2,991
Each (In a Pack of 50)
Units
200mA 60 V dc 4s 0.1 A 40 A 7.4mm 12.7mm 3.1mm Tin Plated Nickel Copper 2.5Ω 4.5Ω 0.38W -40°C +85°C
RS Stock No. 870-0893
Mfr. Part No.PFRA.020
BrandSchurter
kr 2,678
Each (In a Pack of 500)
Units
400mA 60 V dc 2.2s 0.2 A 40 A 7.4mm 12.7mm 3.1mm Tin Plated CuFe 1.5Ω 2.84Ω 0.4W -40°C +85°C
RS Stock No. 870-0834
Mfr. Part No.PFMF.050.2
BrandSchurter
kr 1,873
Each (In a Pack of 2000)
Units
1A 15 V dc 0.15s 0.5 A 100 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.15Ω 0.8W -40°C +85°C
RS Stock No. 870-0890
Mfr. Part No.PFRA.030
BrandSchurter
kr 2,991
Each (In a Pack of 50)
Units
600mA 60 V dc 3s 0.3 A 40 A 7.4mm 13.4mm 3.1mm Tin Plated CuFe 0.76Ω 1.36Ω 0.5W -40°C +85°C