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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  Maximum Voltage
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  Resistance
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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
  
                   
RKEF135


Resettable Fuses - PPTC 60V 40A 2.30W Radial-leaded Device
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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 : 11359
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USD 0.3138

Multiples of: 1

1.35 A2.7 A40 A60 VDC370 mOhmsPCB MountRadial RKEF 5.84 mm- 40 C+ 85 C Bulk
2920L26024DR


Littelfuse Resettable Fuses - PPTC 24V 2.6A 2920 POLYFUSE SURF MOUNT
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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 : 11359
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 0.4485

Multiples of: 1

2.6 A5 A40 A24 VDC75 mOhmsPCB MountSMD/SMT2920 (7351 METRIC)2920L  - 40 C+ 85 C Reel , Cut Tape
Hot 1812L050PR


Resettable Fuses - PPTC 1812 15V .5A
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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 : 11325
Ship by Fri. 13 Sep to Wed. 18 Sep Calender.png

USD 0.0357

Multiples of: 10

0.5 A1 A100 A15 VDC1 OhmsSmd/SmtSmd/Smt1812 (4532 METRIC)1812L- 40 C to + 85 C    Reel
Hot 1210L020WR


Resettable Fuses - PPTC 30V 1210 .200A 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 : 11298
Ship by Fri. 13 Sep to Wed. 18 Sep Calender.png

USD 0.0594

Multiples of: 5

0.2 A0.4 A10 A30 V5 OhmsSmd/SmtSmd/Smt1210 (3225 METRIC)1210L- 40 C to + 85 C - 40 C+ 85 C Reel
LVR055K


Resettable Fuses - PPTC .55A 240VAC 20/5.5A 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 : 11131
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.5925

Multiples of: 1

0.55 A1.25 A7 A240 VAC1.45 OhmsThrough HoleRadial Lvr- 40 C to + 85 C5.8 Mm- 40 C+ 85 C Bulk
F17956-000


Resettable Fuses - PPTC 240V .55A-HD 5.5A-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 : 11131
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.5925

Multiples of: 1

               
1206L500SL-VWR


Resettable Fuses - PPTC PTC 6V POLYFUSE SURF MOUNT 1206 SL 5.00A
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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 : 11053
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 1.11

Multiples of: 1

5 A10 A50 A6 VDC12 mOhmsPCB MountSMD/SMT1206 (3418 METRIC)Low Rho  - 40 C+ 85 C Reel , Cut Tape
Hot RGEF250-2


Resettable Fuses - PPTC RGEF250-2
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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 : 10979
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.2567

Multiples of: 1

2.5 A4.7 A100 A16 VDC53 mOhmsThrough HoleRadial Rgef- 40 C to + 85 C - 40 C+ 85 C Reel
0603L300/9SLYR


Resettable Fuses - PPTC 9V 3A 0603 POLYFUSE SURF MOUNT
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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 : 10597
Ship by Thu. 05 Sep to Mon. 09 Sep Calender.png

USD 1.8625

Multiples of: 1

3 A6 A50 A9 VDC30 mOhmsPCB MountSMD/SMT0603 (1608 METRIC)Low Rho  - 40 C+ 85 C Reel , Cut Tape
Hot RXEF375


Resettable Fuses - PPTC Radial Lead 3.75A 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 : 9352
Ship by Fri. 30 Aug to Thu. 05 Sep Calender.png

USD 0.4906

Multiples of: 1

3.75 A7.5 A40 A72 VDC80 mOhmsPCB MountRadial RXEF 10.9 mm- 40 C+ 85 C Bulk
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