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. 738-2905
Mfr. Part No.0154.125DR
BrandLittelfuse
SGD4.821
Each (In a Pack of 10)
units
125 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. 541-3401
Mfr. Part No.0451002.MRL
BrandLittelfuse
SGD2.331
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. 769-3713
Mfr. Part No.0451002.NRL
BrandLittelfuse
SGD1.726
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. 852-7244
Mfr. Part No.TR-3216FF1-R
SGD0.77
Each
units
1 A - 3.2mm 1.6mm 0.89mm - 3.2 x 1.6 x 0.89mm F Ceramic - - - - -
RS Stock No. 541-3350
Mfr. Part No.0451.500MRL
BrandLittelfuse
SGD1.925
Each (In a Pack of 10)
units
500 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. 738-2867
Mfr. Part No.0154010.DR
BrandLittelfuse
SGD4.452
Each (In a Pack of 10)
units
10 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. 738-2891
Mfr. Part No.0154.375DR
BrandLittelfuse
SGD4.767
Each (In a Pack of 10)
units
375 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. 738-2986
Mfr. Part No.045201.5MRL
BrandLittelfuse
SGD1.869
Each (In a Pack of 10)
units
1.5 A 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. 820-7048
Mfr. Part No.0437.750WR
BrandLittelfuse
SGD1.333
Each (In a Pack of 100)
units
750 mA 63 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. 624-3332
Mfr. Part No.1206SFF500F/32-2
BrandLittelfuse
SGD1.953
Each (In a Pack of 10)
units
5 A 32 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. 895-1754
Mfr. Part No.047603.5MR
BrandLittelfuse
SGD1.712
Each (In a Pack of 10)
units
3.5 A 250 V 6.1mm 2.69mm 3.15mm - 6.1 x 2.69 x 3.15mm F Ceramic - -55°C +125°C Brass, Silver Plated -55 → +125 °C
RS Stock No. 541-3451
Mfr. Part No.0451007.MRL
BrandLittelfuse
SGD15.672
Each (In a Pack of 10)
units
7 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. 541-3467
Mfr. Part No.0451010.MRL
BrandLittelfuse
SGD2.956
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. 541-3619
Mfr. Part No.0466003.NR
BrandLittelfuse
SGD1.009
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. 703-2795
Mfr. Part No.3413.0332.22
BrandSchurter
SGD1.01
Each (In a Bag of 10)
units
25 A - 3.2mm 1.6mm 0.6mm - 3.2 x 1.6 x 0.6mm T Epoxy Glass 100 A @ 32 V ac, 100 A @ 63 V dc -55°C +90°C Tin Plated Copper -55 → +90 °C
RS Stock No. 541-3338
Mfr. Part No.0451.250MRL
BrandLittelfuse
SGD2.188
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. 219-6074
Mfr. Part No.0154.500DR
BrandLittelfuse
SGD4.41
Each (In a Pack of 10)
units
500 mA 125 V ac/dc 9.73mm 5.03mm 3.81mm - 9.73 x 5.03 x 3.81mm FF Thermoplastic 50 A @ 125 V ac/dc -55°C +125°C Tin/Lead Plated Beryllium Copper -55 → +125 °C
RS Stock No. 769-3722
Mfr. Part No.0451010.NRL
BrandLittelfuse
SGD3.171
Each (In a Pack of 10)
units
10 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. 173-7928
Mfr. Part No.3413.0332.22
BrandSchurter
SGD687.75
1 Reel of 1000
Reel(s)
25 A 32 V ac, 63 V dc 3.2mm 1.6mm 0.6mm - 3.2 x 1.6 x 0.6mm T Epoxy Glass 100 A @ 32 V ac, 100 A @ 63 V dc -55°C +90°C Tin Plated Copper -55 → +90 °C
RS Stock No. 787-4328
Mfr. Part No.0449002.MR
BrandLittelfuse
SGD3.062
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