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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Omschrijving Prijs 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-stocknr. 174-0769
Fabrikantnummer0251002.NRT1L
FabrikantWickmann
€ 0,651
Each (In a Pack of 10)
Aantal stuks
- 125 V ac/dc - - 2 A 7.11mm - 2.8 Dia.mm - - 0.04Ω - -55°C +125°C
RS-stocknr. 174-0705
Fabrikantnummer2920L250DR
FabrikantWickmann
€ 0,683
Each (In a Pack of 10)
Aantal stuks
5A 15 V dc 10s 2.5 A 40 A 7.98mm 1.25mm 5.44mm - 0.03Ω 80mΩ 1.5W -40°C +85°C
RS-stocknr. 174-0375
Fabrikantnummer1206L400SLWR
FabrikantWickmann
€ 4.997,25
1 Reel of 3000
Reel(s)
8A 6 V dc 2s 4 A 50 A 3.4mm 1.4mm 1.8mm Tin Plated Copper 0.001Ω 10mΩ 0.8W -40°C +85°C
RS-stocknr. 174-0455
FabrikantnummerRF0315-000
FabrikantWickmann
€ 3.400,00
1 Reel of 10000
Reel(s)
1A 60 V dc 4s 0.5 A 10 A 7.98mm 3.18mm 5.44mm - 0.35Ω 1.4Ω 1.7W -40°C +85°C
RS-stocknr. 910-8588
FabrikantnummerHC85AY-1
FabrikantBourns
€ 1,326
Each (In a Pack of 5)
Aantal stuks
80A 28 V dc - - 25 A 5.8mm 1.15mm 3.75mm Copper Alloy - 5mΩ - - -
RS-stocknr. 174-0374
Fabrikantnummer1812L150/24MR
FabrikantWickmann
€ 417,55
1 Reel of 1000
Reel(s)
3A 24 V dc 1.5s 1.5 A 20 A 4.73mm 1.8mm 3.41mm Solder Plated Copper 0.04Ω 120mΩ 0.8W -40°C +85°C