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$2.871
/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 167-4517
製造零件編號MF-FSMF020X-2
BrandBourns
HK$2.913
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$4.05
/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$4.47
/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$4.45
/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 647-8178
製造零件編號MF-MSMF030-2
BrandBourns
HK$2.391
/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 647-8033
製造零件編號MF-SM100-2
BrandBourns
HK$3.124
/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$2,022.93
毎卷:1500 個
Reel(s)
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 647-8190
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 910-8591
製造零件編號NR72AB0
BrandBourns
HK$11.518
/個 (每包:5個)
單位
40A 28 V dc - - 25 A 4.8mm 0.89mm 2.8mm Copper Alloy - 5mΩ - - -
RS庫存編號 817-1646
製造零件編號MF-LR730/20-0
BrandBourns
HK$10.617
/個 (每包:10個)
單位
14.1A 20 V 5s 7.3 A 100 A 18.1mm 1mm 14.5mm Weldable Nickel 0.006Ω 12mΩ 3W -40°C +85°C
RS庫存編號 647-8213
製造零件編號MF-MSMF110-2
BrandBourns
HK$3.06
/個 (每包:10個)
單位
2.2A 6 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庫存編號 691-7591
製造零件編號MF-SMDF150-2
BrandBourns
HK$5.48
/個 (每包:5個)
單位
3A 15 V 0.8s 1.5 A 40 A 5.44mm 0.85mm 4.93mm Electroless Nickel Immersion Gold 0.05Ω 170mΩ 1.1W -40°C +85°C
RS庫存編號 817-1728
製造零件編號MF-S420
BrandBourns
HK$3.55
/個 (每包:10個)
單位
7.6A 30 V 6s 4.2 A 100 A 17.4mm 1.1mm 13.6mm Quarter Hard Nickel 0.012Ω 24mΩ 2.9W -40°C +85°C
RS庫存編號 167-4518
製造零件編號MF-FSMF035X-2
BrandBourns
HK$3.092
個 (在毎卷:6000)
單位
750mA 6 V 0.1s 0.35 A 40 A 1.85mm 0.65mm 1.05mm Gold Plated Nickel 0.2Ω 1.4Ω 0.5W -40°C +85°C
RS庫存編號 167-4470
製造零件編號MF-PSMF010X-2
BrandBourns
HK$3.262
個 (在毎卷:3000)
單位
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庫存編號 817-1725
製造零件編號MF-SVS175-0
BrandBourns
HK$6.088
/個 (每包:5個)
單位
4.2A 10 V 5s 1.75 A 100 A 6.4mm 0.9mm 5.5mm Weldable Nickel 0.017Ω 31mΩ 2.1W -40°C +85°C
RS庫存編號 817-1674
製造零件編號MF-RG1100-0
BrandBourns
HK$12.467
/個 (每包:10個)
單位
18.7A 16 V dc 7s 11 A 55 A 17.5mm 26mm 3mm - 0.0037Ω 8.9mΩ 3.7W -40°C +85°C
RS庫存編號 910-8594
製造零件編號NR77AB0
BrandBourns
HK$11.518
/個 (每包:5個)
單位
40A 28 V dc - - 25 A 4.8mm 0.89mm 2.8mm Copper Alloy - 5mΩ - - -
RS庫存編號 817-1614
製造零件編號CMF-RL25U-0
BrandBourns
HK$4.157
/個 (每包:10個)
單位
150mA 220 V 0.25s 0.06 A 900 mA - 3.5mm 5.2mm - - 25Ω - -40°C +125°C