Non-Resettable Surface Mount Fuses

Non-resettable surface mount fuses are single-use circuit protection devices that break a circuit when a fault is detected. This type of fuse is designed to be mounted directly onto a printed circuit board (PCB).

How do non-resettable surface mount fuses work?

Non-resettable surface mount fuses perform the role of a simple circuit breaker in a circuit. When a fault such as overcurrent or a short circuit is detected, the metal strip inside the fuse melts, stopping the flow of current and preventing damage to the circuit and any other connected devices. Once the fuse has blown, it must be replaced as it is non-resettable.

Types of non-resettable surface mount fuses

Non-resettable surface mount fuses can differ by their voltage and current rating, their size and their level of resistance, measured in ohms. Their body material can also vary widely, from thermoplastic to glass ceramic. This type of fuse can have a range of maximum and minimum operating temperatures.


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Description Price Current Rating Voltage Rating Length Width Height Package Size Dimensions Fuse Speed Body Material Breaking Capacity at Maximum Voltage Rating Minimum Operating Temperature Maximum Operating Temperature Terminal Material Operating Temperature Range
RS Stock No. 692-5078
Mfr. Part No.SF-1206S500-2
BrandBourns
TWD25.20
Each (In a Pack of 10)
units
5 A 24 V dc 3.1mm 1.55mm 0.6mm - 3.1 x 1.55 x 0.6mm T Ceramic 50 A -40°C +105°C Tin Plated Copper/Nickel -40 → +105 °C
RS Stock No. 738-2895
Mfr. Part No.0154.315DR
BrandLittelfuse
TWD86.20
Each (In a Pack of 10)
units
315 mA 125 V 9.73mm 5.03mm 3.81mm - 9.73 x 5.03 x 3.81mm F - - -55°C +125°C - -55 → +125 °C
RS Stock No. 692-5040
Mfr. Part No.SF-1206F500-2
BrandBourns
TWD17.20
Each (In a Pack of 10)
units
5 A 24 V dc 3.1mm 1.55mm 0.6mm - 3.1 x 1.55 x 0.6mm F Ceramic 50 A -40°C +105°C Tin Plated Copper/Nickel -40 → +105 °C
RS Stock No. 787-4328
Mfr. Part No.0449002.MR
BrandLittelfuse
TWD52.40
Each (In a Pack of 5)
units
2 A 125 V 6.1mm 2.9mm 2.9mm - 6.1 x 2.9 x 2.9mm T Ceramic 50 A @ 125 V ac/dc -55°C +125°C Gold Plated -55 → +125 °C
RS Stock No. 736-8704
Mfr. Part No.160016.6,3
BrandSIBA
TWD51.30
Each (In a Bag of 10)
units
6.3 A - 16mm 4.4mm 4.4mm - 16 x 4.4 x 4.4mm - Ceramic Tube With Filling - - - Copper Alloy, Silver Plated -
RS Stock No. 738-2964
Mfr. Part No.0451.080MRL
BrandLittelfuse
TWD118.00
Each (In a Pack of 10)
units
80 mA 125 V 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm FF Ceramic 50 A @ 125 V ac/dc, 300 A @ 32 V dc -55°C +125°C Gold Plated, Silver Plated, SnPb Plated -55 to +125 °C
RS Stock No. 541-3467
Mfr. Part No.0451010.MRL
BrandLittelfuse
TWD36.70
Each (In a Pack of 10)
units
10 A 125 V ac/dc 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm FF Ceramic 50 A @ 125 V ac/dc -55°C +125°C Gold Plated -55 → +125 °C
RS Stock No. 878-4056
Mfr. Part No.0451002.MR
BrandLittelfuse
TWD76.00
Each (In a Pack of 10)
units
2 A 125 V ac/dc 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm FF Ceramic - -55°C +125°C Silver Plated -55 → +125 °C
RS Stock No. 541-3423
Mfr. Part No.0451004.MRL
BrandLittelfuse
TWD28.60
Each (In a Pack of 10)
units
4 A 125 V ac/dc 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm FF Ceramic 50 A @ 125 V ac/dc -55°C +125°C Gold Plated -55 → +125 °C
RS Stock No. 707-6767
Mfr. Part No.F0402E0R25FSTR
BrandAVX
TWD11.80
Each (In a Pack of 10)
units
250 mA 32 V 1mm 0.55mm 0.4mm - 1 x 0.55 x 0.4mm F - 50 A -55°C +125°C Nickel -55 → +125 °C
RS Stock No. 164-8081
Mfr. Part No.1206SFP250F/32-2
BrandLittelfuse
TWD38,969.00
1 Tape of 3000
Tape(s)
2.5 A 32 V dc 1.75mm 0.95mm 0.95mm - 1.75 x 0.95 x 0.95mm - Glass Ceramic 50 A @ 32 V dc -55°C +125°C Silver -55 → +125 °C
RS Stock No. 173-7791
Mfr. Part No.3413.0119.22.
BrandSchurter
TWD12,042.00
1 Reel of 1000
Reel(s)
2 A 32 V ac, 63 V dc 3.2mm 1.6mm 0.6mm - 3.2 x 1.6 x 0.6mm FF Epoxy Glass 50 A @ 32 V ac, 50 A @ 63 V dc -55°C +90°C Tin Plated Copper -55 → +90 °C
RS Stock No. 736-8750
Mfr. Part No.2410SFV2.00FM/125-2
BrandLittelfuse
TWD30.10
Each (In a Bag of 10)
units
2 A 125 V ac/dc 6.25mm 2.64mm 2.36mm - 6.25 x 2.64 x 2.36mm FF Fibreglass Enforced Epoxy 50 A@ 125 V ac, 50 A@ 125 V dc, 300 A@ 32 V dc -55°C +125°C Copper Terminal With Nickel And Tin Plated -55 → +125 °C
RS Stock No. 895-1606
Mfr. Part No.0459.062UR
BrandLittelfuse
TWD95.00
Each (In a Pack of 10)
units
62 mA 125 V 7.24mm 4.32mm 3.05mm - 7.24 x 4.32 x 3.05mm FF Thermoplastic - -55°C +125°C Tin Plated Copper -55 → +125 °C
RS Stock No. 624-3275
Mfr. Part No.0603SFF400F/32-2
BrandLittelfuse
TWD28.60
Each (In a Pack of 10)
units
4 A 32 V 1.6mm 0.8mm 0.8mm - 1.6 x 0.8 x 0.8mm F Ceramic 35 A -55°C +125°C Nickel, Silver, Tin -55 → +125 °C
RS Stock No. 852-7522
Mfr. Part No.CC12H5A-TR
TWD76,093.00
1 Pack of 3000
Pack(s)
5 A 32 V dc 3.2mm 1.6mm 0.6mm - 3.2 x 1.6 x 0.6mm - - - -40°C +125°C - -40 → +125 °C
RS Stock No. 385-4349
Mfr. Part No.GMT-1/2-BK
TWD194.00
Each
units
500 mA - 20.57mm 0.688in 0.127in - 0.81 x 0.688 x 0.127in F Thermoplastic 300 A @ 125 V ac, 450 A@ 60 V dc - - Tin Plated Beryllium Copper -
RS Stock No. 738-2970
Mfr. Part No.0461.500ER
BrandLittelfuse
TWD51.70
Each (In a Pack of 10)
units
500 mA 600 V 10.1mm 3.25mm 3.43mm - 10.1 x 3.25 x 3.43mm - Ceramic 60 A @ 600 V ac, 100 A @ 80 V dc -55°C +125°C Silver Plated -55 to +125 °C
RS Stock No. 738-2848
Mfr. Part No.0452.375MRL
BrandLittelfuse
TWD41.00
Each (In a Pack of 10)
units
375 mA 125 V 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm T Ceramic 50 A @ 125 V ac/dc, 300 A @ 32 V dc -55°C +125°C Gold Plated -55 to +125 °C
RS Stock No. 692-4961
Mfr. Part No.SF-0402S200-2
BrandBourns
TWD21.30
Each (In a Pack of 10)
units
2 A 24 V dc 1mm 0.52mm 0.35mm - 1 x 0.52 x 0.35mm T Ceramic 35 A -40°C +105°C Tin Plated Copper/Nickel -40 → +105 °C