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
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  Package / Case
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(Ex. GST)(▲▼)		Enter Qty Hold CurrentTrip CurrentCurrent Rating - MaxMaximum VoltageResistanceMounting StyleTermination StylePackage / CaseSeriesOperating Temperature RangeLead SpacingMinimum Operating TemperatureMaximum Operating TemperatureQualificationPackaging
  
                   
MICROSMD175F-2


PTC Resettable Fuse 1.75A(hold) 3.5A(trip) 6V 40A 0.025Ohm SMD Solder Pad 1210 T/R
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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 : 3873
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.2073

Multiples of: 1

       1210 (3225 METRIC)      Reel
1210L035/60PR


Resettable Fuses - PPTC PTC 60V 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 : 3860
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.6396

Multiples of: 1

350 mA700 mA10 A60 VDC1.5 OhmsSMD/SMTSMD/SMT1210 (3225 METRIC)1210L  - 40 C+ 85 C Reel , Cut Tape
TRF250-145-2


Resettable Fuses - PPTC 250V .145A-HD 3A MAX (R)
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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 : 3858
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.4462

Multiples of: 1

0.145 A0.29 A3 A60 VDC14 OhmsThrough HoleRadial Trf250- 40 C to + 85 C5 Mm- 40 C+ 85 C Cut Tape
1206L700SLPR


Resettable Fuses - PPTC PTC 6V POLYFUSE SURF MOUNT 1206 SL 7.00A
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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 : 3855
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 1.2875

Multiples of: 1

7 A14 A50 A6 VDC7 mOhmsPCB MountSMD/SMT 1206L  - 40 C+ 85 C Reel , Cut Tape
RUEF135-AP


Resettable Fuses - PPTC
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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 : 3847
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.229

Multiples of: 1

1.35 A2.7 A100 A30 VDC0.13 OhmsThrough HoleRadial Ruef- 40 C to + 85 C - 40 C+ 85 C Reel
RF1631-000


Resettable Fuses - PPTC 60V .23A-HD 10A MAX (R)
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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 : 3841
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.6235

Multiples of: 1

0.23 A0.59 A10 A 0.98 Ohms (min)Smd/Smt 2920 (7555 METRIC)Asmd+ 85 C    Reel
RXEF050-AP


Resettable Fuses - PPTC 72V 0.5A-HD 40A MAX
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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 : 3839
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.2512

Multiples of: 1

0.5 A1 A40 A72 VDC1.17 OhmsThrough HoleRadial Rxef- 40 C to + 85 C - 40 C+ 85 C Ammo Pack
SRP120F


Resettable Fuses - PPTC 1.2A 15V 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 : 3812
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.3619

Multiples of: 1

1.2 A2.7 A100 A15 VDC220 mOhmsStrapAxial Srp- 40 C to + 85 C - 40 C+ 85 C Bulk
1206L11012SLYR


Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.1A
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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 : 3811
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 1.425

Multiples of: 1

1.1 A2.2 A50 A6 V0.13 OhmsSmd/SmtSmd/Smt1206 (3216 METRIC)Lorho     Reel
RF5052-000


Resettable Fuses - PPTC PICO SMD RESETTABLE FUSE
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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 : 3807
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.3936

Multiples of: 1

350 mA750 mA100 A6 VDC1.4 OhmsPCB MountSMD/SMT0805 (2012 METRIC)   - 40 C+ 85 C Reel , Cut Tape
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