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. 870-0834
Mfr. Part No.PFMF.050.2
BrandSchurter
€436.28
1 Pack of 2000
Pack(s)
1A 15V dc 0.15s 0.5A 100 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.15Ω 0.8W -40°C +85°C
RS Stock No. 867-5236
Mfr. Part No.F74007-000
BrandLittelfuse
€0.384
Each (In a Bag of 10)
units
- 240V ac/dc 21s 0.33A 4.5 A 11.4mm 19mm 3.8mm Tin Plated Copper 0.77Ω 1.24Ω 1.7W -20°C +85°C
RS Stock No. 895-1625
Mfr. Part No.1206L020YR
BrandLittelfuse
€0.225
Each (In a Pack of 10)
units
- 24V dc 0.1s 0.2A 100 A 3.4mm 0.75mm 1.8mm Solder Plated Copper 0.65Ω 2.6Ω 0.6W -40°C +85°C
RS Stock No. 895-1640
Mfr. Part No.2920L200DR
BrandLittelfuse
€0.361
Each (In a Pack of 10)
units
4A 15V dc 5s 2A 40 A 7.98mm 1.25mm 5.44mm Solder Plated Copper 0.05Ω 125mΩ 1.5W -40°C +85°C
RS Stock No. 174-0379
Mfr. Part No.30R400UF
BrandLittelfuse
€1.277
Each (In a Box of 200)
units
8A 30V dc 12.7s 4A 40 A 14mm 22mm 3mm Tin Plated Copper 0.01Ω 50mΩ 2.5W -40°C +85°C
RS Stock No. 174-0376
Mfr. Part No.1812L010DR
BrandLittelfuse
€413.70
1 Reel of 1500
Reel(s)
300mA 30V dc 1.5s 0.1A 100 A 4.73mm 1.25mm 3.41mm Solder Plated Copper 1.6Ω 15Ω 0.8W -40°C +85°C
RS Stock No. 174-0888
Mfr. Part No.RF0319-000
BrandLittelfuse
€0.633
Each (In a Pack of 10)
units
2.2A 33V dc 0.5s 1.1A 40 A 7.98mm 3mm 5.44mm - 0.12Ω 410mΩ 1.7W -40°C +85°C
RS Stock No. 174-0389
Mfr. Part No.RF1347-000
BrandLittelfuse
€3,528.77
1 Reel of 15000
Reel(s)
1.1A 13.2V dc 0.1s 0.5A 100 A 3.4mm 0.74mm 1.8mm - 0.2Ω 750mΩ 0.8W -40°C +85°C
RS Stock No. 867-5312
Mfr. Part No.NANOSMDCH010F-02
BrandLittelfuse
€0.279
Each (In a Bag of 10)
units
- 30V dc 0.1s 0.15A 10 A 1.8mm 3.4mm 0.7mm Tin 1.1Ω 10Ω 0.8W - -
RS Stock No. 174-0764
Mfr. Part No.1210L075/24PR
BrandLittelfuse
€1.06
Each (In a Pack of 10)
units
1.5A 24V dc 0.1s 0.75A 100 A 3.43mm 1.8mm 2.8mm Tin Plated Copper 0.13Ω 400mΩ 0.6W -40°C +85°C
RS Stock No. 174-0371
Mfr. Part No.1812L200THPR
BrandLittelfuse
€400.00
1 Reel of 2000
Reel(s)
3.5A 8V dc 2s 2A 100 A 4.73mm 0.6mm 3.41mm Solder Plated Copper 0.02Ω 70mΩ 0.8W -40°C +85°C
RS Stock No. 910-8560
Mfr. Part No.LC82AY-1
BrandBourns
€0.346
Each (In a Pack of 5)
units
40A 28V dc - - 12 A 5.8mm 1.15mm 3.2mm Copper Alloy - 10mΩ - - -
RS Stock No. 174-0342
Mfr. Part No.2920L400/15MR
BrandLittelfuse
€1,225.00
1 Reel of 1000
Reel(s)
8A 15V dc 4s 4A 40 A 7.98mm 1.6mm 5.44mm - 0.01Ω 40mΩ 1.5W -40°C +85°C
RS Stock No. 787-4192
Mfr. Part No.1210L020WR
BrandLittelfuse
€0.235
Each (In a Pack of 10)
units
- 30V dc 0.02s 0.2A 10 A 3.43mm 1mm 2.8mm Tin Plated Copper 0.8Ω 0.6W -40°C +85°C
RS Stock No. 174-0784
Mfr. Part No.0603L050SLYR
BrandLittelfuse
€1.306
Each (In a Pack of 50)
units
1A 6V dc 0.1s 0.5A 50 A 1.8mm 0.75mm 1mm Tin Plated Copper 0.07Ω 350mΩ 0.6W -40°C +85°C
RS Stock No. 817-1721
Mfr. Part No.MF-SD013/250-2
BrandBourns
€1.422
Each (In a Pack of 5)
units
260mA 60V 2.5s 0.13A 3 A 8.9mm 10.2mm 7.2mm - 1.5W -40°C +85°C
RS Stock No. 174-0721
Mfr. Part No.0251003.MXL
BrandLittelfuse
€0.50
Each (In a Pack of 10)
units
- 125V ac/dc - - 3 A 7.11mm - 2.8 Dia.mm - - 0.02Ω - -55°C +125°C
RS Stock No. 870-0935
Mfr. Part No.PFRA.800
BrandSchurter
€310.18
1 Pack of 500
Pack(s)
16A 30V dc 18.8s 8A 40 A 24.2mm 32.9mm 3mm - 0.005Ω 20mΩ 4W -40°C 85°C
RS Stock No. 517-7048
Mfr. Part No.SMD075F-2
BrandLittelfuse
€0.296
Each (In a Pack of 10)
units
1.5A 30V 0.3s 0.75A 40 A 7.98mm 3.18mm 5.44mm - 0.35Ω 1.7W - +85°C
RS Stock No. 647-8099
Mfr. Part No.MF-SM250-2
BrandBourns
€0.45
Each (In a Pack of 10)
units
5A 15V 25s 2.5A 100 A 9.5mm 3mm 6.71mm Tin Plated Brass 0.024Ω 85mΩ 1.9W -40°C +85°C
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