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.


...
Read more Read less

Filters

Viewing 1 - 20 of 438 products
Results per page
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
$0.764
Each (In a Pack of 20)
units
150mA 30 V dc 1.5s 0.05 A 10 A 3.43mm 0.85mm 2.8mm - 3.6Ω 50Ω 1W - +85°C
RS Stock No. 787-4170
Mfr. Part No.1210L005WR
BrandLittelfuse
$0.684
Each (In a Pack of 10)
units
- 30 V dc 1.5s 0.05 A 10 A 3.43mm 1.25mm 2.8mm Tin Plated Copper 3.6Ω 50Ω 0.6W -40°C +85°C
RS Stock No. 647-8342
Mfr. Part No.MF-USMF005-2
BrandBourns
$0.801
Each (In a Pack of 10)
units
- 30 V 1.5s 0.05 A 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
$0.943
Each (In a Pack of 10)
units
1.5A 24 V 0.2s 0.75 A 40 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.11Ω 450mΩ 0.8W -40°C +85°C
RS Stock No. 647-8207
Mfr. Part No.MF-MSMF110/16-2
BrandBourns
$0.70
Each (In a Pack of 10)
units
2.2A 16 V 0.3s 1.1 A 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
$0.635
Each (In a Pack of 10)
units
- 30 V 0.6s 0.1 A 10 A 3.43mm 1.1mm 2.8mm Electroless Nickel Immersion Gold 0.8Ω 15Ω 0.6W -40°C +85°C
RS Stock No. 517-7127
Mfr. Part No.MINISMDC075F-2
BrandLittelfuse
$0.64
Each (In a Pack of 10)
units
1.5A 13.2 V dc 0.2s 0.75 A 100 A 4.73mm 0.62mm 3.41mm - 0.11Ω 450mΩ 1W - +85°C
RS Stock No. 624-3130
Mfr. Part No.NANOSMDC150F-2
BrandLittelfuse
$0.764
Each (In a Pack of 10)
units
3A 6 V dc 0.3s 1.5 A 100 A 3.4mm 0.89mm 1.8mm - 0.04Ω 110mΩ 0.8W - +85°C
RS Stock No. 657-1766
Mfr. Part No.NANOSMDC035F
BrandLittelfuse
$0.596
Each (In a Pack of 10)
units
750mA 16 V dc 0.1s 0.35 A 20 A 3.4mm 0.82mm 1.8mm - 0.45Ω 1.35Ω 0.6W - +85°C
RS Stock No. 817-1618
Mfr. Part No.CMF-SDP10-2
BrandBourns
$1.676
Each (In a Pack of 10)
units
360mA 230 V 3.8s 0.18 A 1 A 11mm 11.5mm 9mm - - 10Ω - -40°C +125°C
RS Stock No. 517-7105
Mfr. Part No.MINISMDC020F-2
BrandLittelfuse
$0.474
Each (In a Pack of 10)
units
400mA 30 V dc 0.02s 0.2 A 10 A 4.73mm 0.89mm 3.41mm - 0.6Ω 3.3Ω 0.8W - +85°C
RS Stock No. 867-5312
Mfr. Part No.NANOSMDCH010F-02
BrandLittelfuse
$0.813
Each (In a Bag of 10)
units
- 30 V dc 0.1s 0.15 A 10 A 1.8mm 3.4mm 0.7mm Tin 1.1Ω 10Ω 0.8W - -
RS Stock No. 506-993
Mfr. Part No.NANOSMDC012F
BrandLittelfuse
$0.62
Each (In a Pack of 10)
units
390mA 48 V dc 0.2s 0.12 A 10 A 3.4mm 1mm 1.8mm - 1.4Ω 6.5Ω 0.5W - +85°C
RS Stock No. 787-4268
Mfr. Part No.2920L050DR
BrandLittelfuse
$1.018
Each (In a Pack of 5)
units
1A 60 V dc 4s 0.5 A 10 A 7.98mm 1.25mm 5.44mm Tin Plated Copper 0.35Ω 1.4Ω 1.5W -40°C +85°C
RS Stock No. 517-7032
Mfr. Part No.SMD050F-2
BrandLittelfuse
$0.649
Each (In a Pack of 10)
units
1A 60 V 4s 0.5 A 10 A 7.98mm 3.18mm 5.44mm - 0.35Ω 1.4Ω 1.7W - +85°C
RS Stock No. 817-1633
Mfr. Part No.MF-FSMF010X-2
BrandBourns
$1.232
Each (In a Pack of 10)
units
300mA 15 V 1s 0.1 A 40 A 1.85mm 0.65mm 1.05mm Gold Plated Nickel 0.9Ω 0.5W -40°C +85°C
RS Stock No. 787-4189
Mfr. Part No.1210L010WR
BrandLittelfuse
$0.646
Each (In a Pack of 10)
units
- 30 V dc 1.5s 0.1 A 10 A 3.43mm 1.25mm 2.8mm Tin Plated Copper 1.6Ω 15Ω 0.6W -40°C +85°C
RS Stock No. 787-4211
Mfr. Part No.0805L010YR
BrandLittelfuse
$3.443
Each (In a Pack of 10)
units
- 15 V dc 1.5s 0.1 A 100 A 2.2mm 1mm 1.5mm Tin Plated Copper 0.5W -40°C +85°C
RS Stock No. 167-4470
Mfr. Part No.MF-PSMF010X-2
BrandBourns
$0.608
Each (On a Reel of 3000)
units
300mA 15 V 1.5s 0.1 A 40 A 2.3mm 0.85mm 1.5mm Gold Plated Nickel 7.5Ω 0.5W -40°C +85°C
RS Stock No. 647-8083
Mfr. Part No.MF-SM150/33-2
BrandBourns
$0.64
Each (In a Pack of 10)
units
3A 33 V 5s 1.5 A 40 A 9.5mm 3mm 6.71mm Tin Plated Brass 0.06Ω 230mΩ 1.9W -40°C +85°C
Related Products
Tyco Raychem brand 0603 SFF fuses help provide ...
Description:
Tyco Raychem brand 0603 SFF fuses help provide overcurrent protection on systems using dc power sources. Their monolithic, multilayer design offers the highest hold current in the smallest footprint, reducing diffusion-related aging, improving product reliability and resilience, and enhancing high ...
Littelfuse 451 series of NANO2 surface mount fuses ...
Description:
Littelfuse 451 series of NANO2 surface mount fuses are very small wire-in-air (WIA) square shape surface mount devices which are suitable for a variety of secondary side circuit over-current protection applications. Very fast acting. Small size. Low temperature de-rating.
The 30R series radial leaded device is designed ...
Description:
The 30R series radial leaded device is designed to provide overcurrent protection for low voltage (≤30V) applications where space is not a concern and resettable protection is preferred. Lead-free. Fast time-to-trip. Cured, flame retardant expoxy polymer insulating material.
Radial leaded resettable PTCs are designed to provide ...
Description:
Radial leaded resettable PTCs are designed to provide Over current protection for applications where space is not a concern and resettable protection is preferred. Lead-free. Fast time-to-trip. Cured, flame retardant expoxy polymer insulating material.