About Resettable Fuses - PPTC

Littelfuse Resettable Fuses - PPTC

Resettable fuses, also known as PPTC (Polymeric Positive Temperature Coefficient) resettable fuses, are electronic components that use special polymeric materials that change resistance when heated. When current increases, the fuse will “trip” and open, causing a drop in current flow. Unlike traditional fuses, resettable fuses can be reset with a manual reset button or an automated circuit. Once the current and temperature return to normal levels, the fuse will reset itself and allow current to flow again. This process prevents dangerous situations, like overloaded circuits, that could result in fire or injury. Additionally, resettable fuses are more reliable than traditional fuses because they can withstand multiple trips and reset themselves automatically.

Resettable Fuses - PPTC

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  Hold Current
Reset
  Trip Current
Reset
  Current Rating - Max
Reset
  Maximum Voltage
Reset
  Resistance
Reset
  Mounting Style
Reset
  Termination Style
Reset
  Package / Case
Reset
  Series
Reset
  Operating Temperature Range
Reset
  Lead Spacing
Reset
  Minimum Operating Temperature
Reset
  Maximum Operating Temperature
Reset
  Qualification
Reset
  Packaging
Reset
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Image  Information Image Stock Code(▲▼)Description
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Global Stock ⓘ (▲▼)Price(USD) 

(Ex. GST)(▲▼)		Enter Qty Hold CurrentTrip CurrentCurrent Rating - MaxMaximum VoltageResistanceMounting StyleTermination StylePackage / CaseSeriesOperating Temperature RangeLead SpacingMinimum Operating TemperatureMaximum Operating TemperatureQualificationPackaging
  
                   
RF2149-000


Resettable Fuses - PPTC MICROASMD005F-2
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 17090
Ship by Fri. 21 Jun to Thu. 27 Jun Calender.png

USD 0.4367
Multiples of: 1

               
SMD200F-2018-2


Resettable Fuses - PPTC 2A 6V 40A Imax
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 16867
Ship by Fri. 21 Jun to Thu. 27 Jun Calender.png

USD 0.271
Multiples of: 1

2 A4.2 A40 A6 VDC100 mOhmsSmd/SmtSmd/Smt2018 (5050 METRIC)Smd- 40 C to + 85 C - 40 C+ 85 C Reel
RHEF400-2


Resettable Fuses - PPTC RHEF400-2
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 16847
Ship by Thu. 27 Jun to Mon. 01 Jul Calender.png

USD 0.4225
Multiples of: 1

4 A7 A100 A16 VDC44 mOhmsThrough HoleRadial Rhef- 40 C to + 125 C - 40 C+ 125 C Reel
RXEF025-2


Resettable Fuses - PPTC Radial Lead .25A 72V 40A Imax
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 16615
Ship by Thu. 27 Jun to Mon. 01 Jul Calender.png

USD 0.1955
Multiples of: 1

250 mA500 mA40 A72 VDC3 OhmsPCB MountRadial RXEF 5.8 mm- 40 C+ 85 C Reel , Cut Tape
1206L025YR


Resettable Fuses - PPTC 16V .25A 1206 POLYFUSE
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 16509
Ship by Fri. 05 Jul to Wed. 10 Jul Calender.png

USD 0.0324
Multiples of: 10

250 mA500 mA100 A16 VDC2.3 OhmsPCB MountSMD/SMT1206 (3216 METRIC)1206L  - 40 C+ 85 C Reel , Cut Tape
1210L035/30WR


Resettable Fuses - PPTC PTC 30V POLYFUSE SURF MOUNT 1210 0.35A
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 16357
Ship by Thu. 27 Jun to Mon. 01 Jul Calender.png

USD 0.5387
Multiples of: 1

               
MINISMDC050F-2


Resettable Fuses - PPTC .50A 24V 100A Imax
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 15777
Ship by Fri. 05 Jul to Wed. 10 Jul Calender.png

USD 0.0653
Multiples of: 5

500 mA1 A100 A24 V1 OhmsSmd/SmtSmd/Smt1812 (4532 METRIC)Minismd- 40 C to + 85 C    Reel
1206L050/15YR


Resettable Fuses - PPTC 15V 1206 .500A POLYFUSE
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 14205
Ship by Fri. 05 Jul to Wed. 10 Jul Calender.png

USD 0.0782
Multiples of: 5

500 mA1 A100 A15 VDC750 mOhmsPCB MountSMD/SMT1206 (3216 METRIC)1206L  - 40 C+ 85 C Reel , Cut Tape
1812L075-33DR


PTC Resettable Fuses 1812 RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 7275
Ship by Fri. 21 Jun to Thu. 27 Jun Calender.png

USD 0.2713
Multiples of: 1500

0.75 A1.5 A20 A33 VDC0.4 OhmsSmd/SmtSmd/Smt1812 (4532 METRIC)1812L- 40 C to + 85 C    Reel
RXEF250


Resettable Fuses - PPTC Radial Lead 2.5A 72V 40A Imax
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Littelfuse Availability : 441
Ship by Fri. 21 Jun to Thu. 27 Jun Calender.png

USD 0.3732
Multiples of: 1

2.5 A5 A40 A72 V0.13 OhmsThrough HoleRadial Rxef- 40 C to + 85 C10.9 Mm   Bulk
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