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庫存編號 647-8156
製造零件編號MF-MSMF050-2
BrandBourns
HK$3.142
/個 (每包:10個)
單位
1A 15 V 0.15s 0.5 A 100 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.15Ω 0.8W -40°C +85°C
RS庫存編號 517-7105
製造零件編號MINISMDC020F-2
BrandLittelfuse
HK$3.451
/個 (每包:10個)
單位
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庫存編號 517-7098
製造零件編號SMD250F-2
BrandLittelfuse
HK$4.28
/個 (每包:10個)
單位
5A 15 V 25s 2.5 A 40 A 9.4mm 3mm 6.71mm - 0.035Ω 85mΩ 1.9W - +85°C
RS庫存編號 624-3152
製造零件編號NANOSMDC075F-2
BrandLittelfuse
HK$3.26
/個 (每包:10個)
單位
1.5A 6 V dc 0.1s 0.75 A 100 A 3.4mm 0.68mm 1.8mm - 0.09Ω 300mΩ 0.8W - +85°C
RS庫存編號 647-8178
製造零件編號MF-MSMF030-2
BrandBourns
HK$2.297
/個 (每包:10個)
單位
- 30 V 0.1s 0.3 A 10 A 4.73mm 1.1mm 3.41mm Electroless Nickel Immersion Gold 0.3Ω 0.8W -40°C +85°C
RS庫存編號 517-7240
製造零件編號MICROSMD050F-2
BrandLittelfuse
HK$3.601
/個 (每包:20個)
單位
1A 13.2 V dc 0.05s 0.5 A 40 A 3.43mm 0.62mm 2.8mm - 0.25Ω 900mΩ 0.8W - +85°C
RS庫存編號 867-5261
製造零件編號MINISMDC075F/24-2
BrandLittelfuse
HK$4.06
個 (以毎袋:10)
單位
1.5A 24 V dc 0.3s 0.75 A 40 A 3.41mm 4.83mm 1.46mm Tin 0.09Ω 290mΩ 0.8W -40°C +85°C
RS庫存編號 167-4517
製造零件編號MF-FSMF020X-2
BrandBourns
HK$3.11
個 (在毎卷:6000)
單位
500mA 9 V 0.6s 0.2 A 40 A 1.85mm 0.65mm 1.05mm Gold Plated Nickel 0.55Ω 3.5Ω 0.5W -40°C +85°C
RS庫存編號 692-7636
製造零件編號MF-FSMF020X-2
BrandBourns
HK$6.85
/個 (每包:5個)
單位
- 9 V 0.6s 0.2 A 40 A 1.85mm 0.65mm 1.05mm Gold Plated Nickel 0.55Ω 3.5Ω 0.5W -40°C +85°C
RS庫存編號 817-1668
製造零件編號MF-MSMF110/24X-2
BrandBourns
HK$3.172
/個 (每包:10個)
單位
2.2A 24 V 0.5s 1.1 A 20 A 4.83mm 1.6mm 3.41mm Electroless Nickel Immersion Gold 0.06Ω 180mΩ 0.8W -40°C +85°C
RS庫存編號 691-7594
製造零件編號MF-SM185/33-2
BrandBourns
HK$4.71
/個 (每包:5個)
單位
3.6A 33 V 5s 1.8 A 40 A 9.5mm 3mm 6.71mm Tin Plated Brass 0.04Ω 150mΩ 1.9W -40°C +85°C
RS庫存編號 647-8033
製造零件編號MF-SM100-2
BrandBourns
HK$2.822
/個 (每包:10個)
單位
2.2A 30 V 0.5s 1.1 A 80 A 7.98mm 3mm 5.44mm Tin Plated Brass 0.12Ω 480mΩ 1.7W -40°C +85°C
RS庫存編號 162-2532
製造零件編號MF-SM185/33-2
BrandBourns
HK$2.78
個 (在毎卷:1500)
單位
3.6A 33 V 5s 1.8 A 40 A 9.5mm 3mm 6.71mm Tin Plated Brass 0.04Ω 150mΩ 1.9W -40°C +85°C
RS庫存編號 517-7111
製造零件編號MINISMDC050F-2
BrandLittelfuse
HK$3.358
/個 (每包:10個)
單位
1A 24 V dc 0.15s 0.5 A 100 A 4.73mm 0.62mm 3.41mm - 0.15Ω 0.8W - +85°C
RS庫存編號 867-5295
製造零件編號MINISMDC260F/12-2
BrandLittelfuse
HK$17.73
個 (以毎袋:5)
單位
2A 240 V ac/dc 21s 1 A - 18.7mm 24.4mm 5.1mm Tin Plated Copper 0.218Ω 334mΩ 2.87W -20°C +85°C
RS庫存編號 647-8190
製造零件編號MF-MSMF075-2
BrandBourns
HK$3.00
/個 (每包:10個)
單位
1.5A 13.2 V 0.2s 0.75 A 100 A 4.73mm 0.85mm 3.41mm Electroless Nickel Immersion Gold 0.11Ω 450mΩ 0.8W -40°C +85°C
RS庫存編號 870-0880
製造零件編號PFRA.010
BrandSchurter
HK$2.91
/個 (每包:50個)
單位
200mA 60 V dc 4s 0.1 A 40 A 7.4mm 12.7mm 3.1mm Tin Plated Nickel Copper 2.5Ω 4.5Ω 0.38W -40°C +85°C
RS庫存編號 174-0398
製造零件編號RF1183-000
BrandLittelfuse
HK$43,710.66
毎卷:7500 個
Reel(s)
5A 12 V dc 5s 2.6 A 100 A 4.83mm 1.52mm 3.41mm - 0.01Ω 40mΩ 1W -40°C +85°C
RS庫存編號 910-8614
製造零件編號NR82CB0
BrandBourns
HK$8.914
/個 (每包:5個)
單位
30A 28 V dc - - 12 A 4.8mm 0.89mm 2.8mm Copper Alloy - 15mΩ - - -
RS庫存編號 870-0884
製造零件編號PFRA.017
BrandSchurter
HK$2.17
/個 (每包:500個)
單位
340mA 60 V dc 3s 0.17 A 40 A 7.4mm 12.7mm 3.1mm Tin Plated CuFe 3.2Ω 0.48W -40°C +85°C