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. 738-2857
Mfr. Part No.015403.5DRT
BrandLittelfuse
TWD58.80
Each (In a Pack of 10)
units
3.5 A 125 V 9.73mm 5.03mm 3.81mm - 9.73 x 5.03 x 3.81mm T - - -55°C +125°C - -55 → +125 °C
RS Stock No. 541-3338
Mfr. Part No.0451.250MRL
BrandLittelfuse
TWD24.30
Each (In a Pack of 10)
units
250 mA 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. 541-3631
Mfr. Part No.0452002.MRL
BrandLittelfuse
TWD20.70
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 T Ceramic 50 A @ 125 V ac/dc -55°C +125°C Gold Plated -55 → +125 °C
RS Stock No. 769-3738
Mfr. Part No.0452002.NRL
BrandLittelfuse
TWD19.00
Each (In a Pack of 10)
units
2 A 125 V ac 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm T Ceramic - -55°C +125°C - -55 → +125 °C
RS Stock No. 219-6232
Mfr. Part No.0154002.DRT
BrandLittelfuse
TWD59.30
Each (In a Pack of 10)
units
2 A 125 V ac/dc 9.73mm 5.03mm 3.81mm - 9.73 x 5.03 x 3.81mm T Thermoplastic 50 A @ 125 V ac/dc -55°C +125°C Tin/Lead Plated Beryllium Copper -55 → +125 °C
RS Stock No. 738-2952
Mfr. Part No.0451.125MRL
BrandLittelfuse
TWD77.60
Each (In a Pack of 10)
units
125 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. 738-2949
Mfr. Part No.0451008.MRL
BrandLittelfuse
TWD30.10
Each (In a Pack of 10)
units
8 A 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. 876-8186
Mfr. Part No.0429007.WRML
BrandLittelfuse
TWD20.50
Each (In a Pack of 50)
units
7 A 24 V ac/dc 3.18mm 1.52mm 1.14mm - 3.18 x 1.52 x 1.14mm FF Epoxy Substrate - -55°C +90°C Tin Over Nickel Over Copper -55 → +90 °C
RS Stock No. 541-3401
Mfr. Part No.0451002.MRL
BrandLittelfuse
TWD26.80
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 50 A @ 125 V ac/dc -55°C +125°C Gold Plated -55 → +125 °C
RS Stock No. 738-2851
Mfr. Part No.015403.5DR
BrandLittelfuse
TWD38.10
Each (In a Pack of 10)
units
3.5 A 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. 769-3713
Mfr. Part No.0451002.NRL
BrandLittelfuse
TWD25.00
Each (In a Pack of 10)
units
2 A 125 V ac 6.1mm 2.69mm 2.69mm - 6.1 x 2.69 x 2.69mm FF Ceramic - -55°C +125°C - -55 → +125 °C
RS Stock No. 541-3619
Mfr. Part No.0466003.NR
BrandLittelfuse
TWD16.60
Each (In a Pack of 10)
units
3 A 32 V ac/dc 3.175mm 1.524mm 0.585mm - 3.175 x 1.524 x 0.585mm FF Advanced High Temperature Substrate 50 A @ 32 V ac/dc -55°C +90°C Tin Over Nickel Over Copper -55 → +90 °C
RS Stock No. 820-7060
Mfr. Part No.0437007.WR
BrandLittelfuse
TWD21.70
Each (In a Pack of 100)
units
7 A 32 V 3.2mm 1.63mm 0.818mm - 3.2 x 1.63 x 0.8179mm F Ceramic - -55°C +150°C Nickel, Silver, Tin -55 → +150 °C
RS Stock No. 100-2798
Mfr. Part No.3402.0012.11
BrandSchurter
TWD17.00
Each (In a Pack of 10)
units
2 A 63 V ac/dc 7.4mm 3.1mm 2.6mm - 7.4 x 3.1 x 2.6mm F Thermoplastic 50 A @ 63 V ac/dc -55°C +125°C Tin Plated Copper Alloy -55 → +125 °C
RS Stock No. 541-3394
Mfr. Part No.045101.5MRL
BrandLittelfuse
TWD21.60
Each (In a Pack of 10)
units
1.5 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. 541-3344
Mfr. Part No.0451.375MRL
BrandLittelfuse
TWD25.10
Each (In a Pack of 10)
units
375 mA 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. 173-8007
Mfr. Part No.3403.0166.24
BrandSchurter
TWD14.90
Each (On a Reel of 2000)
units
1 A 125 V dc, 250 V ac 10.1mm 3mm 3.75mm - 10.1 x 3 x 3.75mm T Ceramic 35 A @ 250 V dc, 200 A @ 277 V ac -55°C +125°C Tin Plated Copper Alloy -55 → +125 °C
RS Stock No. 736-0740
Mfr. Part No.3403.0166.24
BrandSchurter
TWD21.30
Each (In a Pack of 10)
units
1 A 125 V dc, 250 V ac 10.1mm 3mm 3.75mm - 10.1 x 3 x 3.75mm T Ceramic 35 A @ 250 V dc, 200 A @ 277 V ac -55°C +125°C Tin Plated Copper Alloy -55 → +125 °C
RS Stock No. 624-3017
Mfr. Part No.1206SFF600F/24-2
BrandLittelfuse
TWD10.80
Each (In a Pack of 10)
units
6 A 24 V 3.2mm 1.6mm 1.1mm - 3.2 x 1.6 x 1.1mm F Ceramic 45 A -55°C +125°C Nickel, Silver, Tin -55 → +125 °C
RS Stock No. 173-8012
Mfr. Part No.3403.0172.24
BrandSchurter
TWD14.80
Each (On a Reel of 2000)
units
4 A 125 V dc, 250 V ac 10.1mm 3mm 3.75mm - 10.1 x 3 x 3.75mm T Ceramic 35 A @ 250 V dc, 200 A @ 277 V ac -55°C +125°C Tin Plated Copper Alloy -55 → +125 °C