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. 517-7206
Mfr. Part No.MICROSMD005F-2
BrandLittelfuse
$0.794
Each (In a Pack of 20)
units
150mA 30V dc 1.5s 0.05A 10 A 3.43mm 0.85mm 2.8mm - 3.6Ω 50Ω 1W - +85°C
RS Stock No. 787-4170
Mfr. Part No.1210L005WR
BrandLittelfuse
$0.674
Each (In a Pack of 10)
units
- 30V dc 1.5s 0.05A 10 A 3.43mm 1.25mm 2.8mm Tin Plated Copper 3.6Ω 50Ω 0.6W -40°C +85°C
RS Stock No. 647-8207
Mfr. Part No.MF-MSMF110/16-2
BrandBourns
$0.729
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. 647-8358
Mfr. Part No.MF-USMF010-2
BrandBourns
$0.519
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. 647-8342
Mfr. Part No.MF-USMF005-2
BrandBourns
$0.848
Each (In a Pack of 10)
units
- 30V 1.5s 0.05A 10 A 3.43mm 1.1mm 2.8mm Electroless Nickel Immersion Gold 2.8Ω 50Ω 0.6W -40°C +85°C
RS Stock No. 647-8184
Mfr. Part No.MF-MSMF075/24-2
BrandBourns
$0.615
Each (In a Pack of 10)
units
1.5A 24V 0.2s 0.75A 40 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.11Ω 450mΩ 0.8W -40°C +85°C
RS Stock No. 624-3130
Mfr. Part No.NANOSMDC150F-2
BrandLittelfuse
$0.794
Each (In a Pack of 10)
units
3A 6V dc 0.3s 1.5A 100 A 3.4mm 0.89mm 1.8mm - 0.04Ω 110mΩ 0.8W - +85°C
RS Stock No. 517-7127
Mfr. Part No.MINISMDC075F-2
BrandLittelfuse
$0.672
Each (In a Pack of 10)
units
1.5A 13.2V dc 0.2s 0.75A 100 A 4.73mm 0.62mm 3.41mm - 0.11Ω 450mΩ 1W - +85°C
RS Stock No. 657-1766
Mfr. Part No.NANOSMDC035F
BrandLittelfuse
$0.596
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. 867-5312
Mfr. Part No.NANOSMDCH010F-02
BrandLittelfuse
$0.805
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. 164-8227
Mfr. Part No.NANOSMDCH010F-02
BrandLittelfuse
$2,632.00
1 Tape of 4000
Tape(s)
- 30V dc 0.1s 0.15A 10 A 1.8mm 3.4mm 0.7mm Tin 1.1Ω 10Ω 0.8W - -
RS Stock No. 787-4186
Mfr. Part No.1206L012WR
BrandLittelfuse
$0.635
Each (In a Pack of 10)
units
- 30V dc 0.2s 0.125A 100 A 3.4mm 1.45mm 1.8mm Tin Plated Copper 1.5Ω 0.6W -40°C +85°C
RS Stock No. 787-4277
Mfr. Part No.1812L014DR
BrandLittelfuse
$0.638
Each (In a Pack of 10)
units
- 60V dc 0.15s 0.14A 10 A 4.73mm 1.95mm 3.41mm Tin Plated Copper 1.5Ω 0.8W -40°C +85°C
RS Stock No. 787-4209
Mfr. Part No.1206L025YR
BrandLittelfuse
$0.641
Each (In a Pack of 10)
units
- 16V dc 0.08s 0.25A 100 A 3.4mm 1mm 1.8mm Tin Plated Copper 0.55Ω 2.3Ω 0.6W -40°C +85°C
RS Stock No. 506-993
Mfr. Part No.NANOSMDC012F
BrandLittelfuse
$0.466
Each (In a Pack of 10)
units
390mA 48V dc 0.2s 0.12A 10 A 3.4mm 1mm 1.8mm - 1.4Ω 6.5Ω 0.5W - +85°C
RS Stock No. 647-8083
Mfr. Part No.MF-SM150/33-2
BrandBourns
$0.596
Each (In a Pack of 10)
units
3A 33V 5s 1.5A 40 A 9.5mm 3mm 6.71mm Tin Plated Brass 0.06Ω 230mΩ 1.9W -40°C +85°C
RS Stock No. 647-8285
Mfr. Part No.MF-NSMF075-2
BrandBourns
$1.028
Each (In a Pack of 10)
units
1.5A 6V 0.1s 0.75A 100 A 3.4mm 0.7mm 1.8mm Electroless Nickel Immersion Gold 0.1Ω 400mΩ 0.4W -40°C +85°C
RS Stock No. 517-7105
Mfr. Part No.MINISMDC020F-2
BrandLittelfuse
$0.659
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. 167-4470
Mfr. Part No.MF-PSMF010X-2
BrandBourns
$0.603
Each (On a Reel of 3000)
units
300mA 15V 1.5s 0.1A 40 A 2.3mm 0.85mm 1.5mm Gold Plated Nickel 7.5Ω 0.5W -40°C +85°C
RS Stock No. 517-7076
Mfr. Part No.SMD150F-2
BrandLittelfuse
$0.84
Each (In a Pack of 10)
units
3A 15V dc 5s 1.5A 40 A 9.4mm 3mm 6.71mm - 0.06Ω 250mΩ 1.9W - +85°C