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What is a Resettable Fuse?

A resettable fuse, also known as a PPTC or polymeric positive temperature coefficient fuse, is a fuse that trips when the flow of current received is more than the amount that can be managed by the device or wiring. This helps in preventing damage to the attached equipment. A resettable fuse has the advantage of being able to reset itself once the power overload is reversed and current flow is restored to a normal range.

Types of Resettable Fuses

There are several different kinds of resettable fuses. At Future Electronics we stock many of the most common types categorized by Maximum Working Voltage, Hold Current, Trip Current, Operating Temp Range, Size and Packaging Type. The parametric filters on our website can help refine your search results depending on the required specifications.

The most common sizes for Maximum Working Voltage are 16 V, 30 V and 60 V. We also carry resettable fuses with Maximum Working Voltage up to 600 V. Trip current can be between 100 mA and 9.4A, with the most common values being 1 A, 1.5 A, 2.2 A and 5 A.

Resettable Fuses from Future Electronics

Future Electronics has a complete selection of resettable fuses from several manufacturers when looking for PTC resettable fuses for any types of circuits requiring polyswitch resettable fuses. Simply choose from the resettable fuse technical attributes below and your search results will quickly be narrowed in order to match your specific resettable fuse application needs.

If you have a preferred brand, we deal with Cooper Bussmann, Littelfuse, Raychem and Schurter as manufacturers. You can easily refine your resettable fuse product search results by clicking your preferred resettable fuse brand below from our list of manufacturers.

Applications for Resettable Fuses:

Resettable Fuses can be found in:

  • Computers
  • Portable electronics
  • Multimedia
  • Game machines
  • Mobile phones
  • Telephony and broadband
  • Automotive applications
  • Industrial controls

Choosing the Right Resettable Fuse:

When you are looking for the right resettable fuses, you can filter the results by various attributes with the FutureElectronics.com parametric search: by Maximum Working Voltage (6 V, 16 V, 30 V, 60 V…), Trip current (between 100 mA and 9.4A) and Hold Current (100 mA, 500 mA, 750 mA, 1.5 A, …), to name a few. You will be able to find the right PTC resettable fuses for any types of applications requiring polyswitch resettable fuses.

Resettable Fuses in Production Ready Packaging or R&D Quantities

If the quantity of resettable fuses required is less than a full reel, we offer to customers many of our products in quantities that will help you avoid unneeded surplus.

In addition, Future Electronics offers its clients a unique bonded inventory program designed to eliminate potential problems that could arise from an unpredictable supply of products containing raw metals and products with long or erratic lead times. Talk with your nearest Future Electronics branch so you can find out more on how you can avoid possible shortages.



Featured Resettable Fuse Products


Manufacturer Part Number Description
Cooper BussmannPTR016V0300-TRPPTC Radial 16V 3.0A
Cooper BussmannPTR030V0110-TRPPTC Radial 30V 1.1A
Cooper BussmannPTR030V0250-TRPPTC Radial 30V 2.5A
Littelfuse2920L185DR2920L Series 33 V 1.85 A 2920 Case Surface Mount POLYFUSE® Resettable Fuse
Littelfuse1206L020YR1206L Series 24 V 0.2 A 1206 Case POLYFUSE® Resettable Fuse
Littelfuse1206L025YR1206L Series 16 V 0.25 A 1206 Case POLYFUSE® Resettable Fuse
Littelfuse1812L020PR1812L Series 30 V 0.2 A 1812 Case POLYFUSE® Resettable Fuse
Littelfuse250R120U250R Series 250 V 0.12 A Through Hole Radial Lead POLYFUSE® Resettable Fuse
Littelfuse30R090UPR30R Series 30 V 0.9 A 7.4 x 12.2 x 3 mm Radial Lead POLYFUSE® Resettable Fuse
Littelfuse30R500UF30R Series 30 V 5 A 14 x 25.6 x 3 mm Radial Lead POLYFUSE® Resettable Fuse
Littelfuse1812L150ZR1812L Series 8 V 1.5 A 1812 Case POLYFUSE® Resettable Fuse
RaychemMINISMDC050F-2MINISMDC050F Series 24 V 0.5 A 1812 Surface Mount Polyswitch Resettable Fuse
RaychemMINISMDC014F-2MINISMDC014F Series 60 V 0.14 A 1812 Surface Mount Polyswitch Resettable Fuse
RaychemSMD100F-2SMD Series 30 V 1.1 A Ihold Surface Mount Polyswitch Resettable Fuse
RaychemSMD260F-2SMD Series 6 V 2.6 A Ihold Surface Mount Polyswitch Resettable Fuse
RaychemRXEF075-2RUEF Series 72 V 0.75 A Ihold Through Hole Radial Polyswitch Resettable Fuse
RaychemMICROSMD005F-2MICROSMDF Series 30 V 0.05 A Ihold 1210 Surface Mount Polyswitch Resettable Fuse
RaychemRXEF065RUEF Series 72 V 0.65 A Ihold Through Hole Radial Polyswitch Resettable Fuse
RaychemMICROSMD010F-2MICROSMDF Series 30 V 0.01 A Ihold 1210 Surface Mount Polyswitch Resettable Fuse
RaychemSMD185F-2SMD Series 33 V 1.85 A Ihold Surface Mount Polyswitch Resettable Fuse
RaychemMINISMDC110F/16-2MINISMDC110F Series 16 V 1.1 A 1812 Surface Mount Polyswitch Resettable Fuse
RaychemTRF250-120-2TRF250 Series 60 V 0.12 A Ihold Through Hole Radial Polyswitch Resettable Fuse
RaychemMINISMDC020F-2MINISMDC020F Series 30 V 0.2 A 1812 Surface Mount Polyswitch Resettable Fuse
SchurterPFRA.025PFRA Series 60 V 0.25 A Radial Through Hole Polyswitch Resettable Fuse
SchurterPFRA.500PFRA Series 30 V 5 A Ihold Radial Through Hole Polyswitch Resettable Fuse

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