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. 647-8156
Mfr. Part No.MF-MSMF050-2
BrandBourns
€0.296
Each (In a Pack of 10)
units
1A 15V 0.15s 0.5A 100 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.15Ω 0.8W -40°C +85°C
RS Stock No. 647-8207
Mfr. Part No.MF-MSMF110/16-2
BrandBourns
€0.539
Each (In a Pack of 10)
units
2.2A 16V 0.3s 1.1A 100 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.04Ω 210mΩ 0.8W -40°C +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. 647-7995
Mfr. Part No.MF-SMDF050-2
BrandBourns
€0.289
Each (In a Pack of 10)
units
1.2A 60V 3s 0.55A 10 A 5.44mm 1.09mm 4.93mm Electroless Nickel Immersion Gold 0.2Ω 0.9W -40°C +85°C
RS Stock No. 817-1683
Mfr. Part No.MF-RG300-0
BrandBourns
€0.503
Each (In a Pack of 10)
units
5.1A 16V 1s 3A 100 A 7.1mm 11mm 3mm Tin Plated Copper 0.038Ω 65mΩ 2.3W -40°C +85°C
RS Stock No. 692-7633
Mfr. Part No.MF-FSMF050X-2
BrandBourns
€0.666
Each (In a Pack of 5)
units
1A 6V 0.1s 0.5A 40 A 1.85mm 1mm 1.05mm Gold Plated Nickel 0.1Ω 800mΩ 0.5W -40°C +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. 167-4475
Mfr. Part No.MF-FSMF050X-2
BrandBourns
€0.32
Each (On a Reel of 4000)
units
1A 6V 0.1s 0.5A 40 A 1.85mm 1mm 1.05mm Gold Plated Nickel 0.1Ω 800mΩ 0.5W -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. 870-0856
Mfr. Part No.PFMF.200.2
BrandSchurter
€668.05
1 Pack of 2000
Pack(s)
4A 8V dc 3s 2A 40 A 4.73mm 0.85mm 3.07mm Electroless Nickel 0.02Ω 80mΩ 0.8W -40°C +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. 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. 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. 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. 517-7032
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. 647-8358
Mfr. Part No.MF-USMF010-2
BrandBourns
€0.321
Each (In a Pack of 10)
units
- 30V 0.6s 0.1A 10 A 3.43mm 1.1mm 2.8mm Electroless Nickel Immersion Gold 0.8Ω 15Ω 0.6W -40°C +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. 647-8140
Mfr. Part No.MF-MSMF020-2
BrandBourns
€0.416
Each (In a Pack of 10)
units
- 30V 0.06s 0.2A 80 A 4.73mm 1.1mm 3.41mm Electroless Nickel Immersion Gold 0.4Ω 0.8W -40°C +85°C
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