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
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  Current Rating - Max
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  Maximum Voltage
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  Resistance
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  Mounting Style
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  Termination Style
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  Package / Case
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  Series
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  Operating Temperature Range
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  Lead Spacing
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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
  
                   
RGEF600-2


Resettable Fuses - PPTC RGEF600-2
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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 : 131920
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.3664

Multiples of: 2000

6 A10.2 A100 A16 VDC28 mOhmsThrough HoleRadial Rgef- 40 C to + 85 C5.8 Mm- 40 C+ 85 C Reel
60R090XPR


Polymeric PTC Resettable Fuse 60V 900 mA Ih Through Hole Radial, Disc
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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 : 129980
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2359

Multiples of: 2000

0.9 A1.8 A40 A60 VDC470 mOhmsThrough HoleRadial 60R- 40 C to + 85 C5.1 Mm- 40 C+ 85 C Ammo Pack
RF1181-000


PTC Resettable Fuses 1812 (4.5*3.2mm) 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 : 93863
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.3963

Multiples of: 1500

0.75 A1.5 A40 A24 VDC290 mOhmsSmd/SmtSmd/Smt1812 (4532 METRIC)Minismdc- 40 C to + 85 C    Reel
SMD150F-2


Resettable Fuses - PPTC 1.5A 15V 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 : 85814
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2462

Multiples of: 1

1.5 A3 A40 A15 VDC250 mOhmsPCB MountSMD/SMT3425 (8763 METRIC)SMD  - 40 C+ 85 C Reel , Cut Tape
1812L150/24MR


Resettable Fuses - PPTC 24V 1.5A-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 : 85592
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.044

Multiples of: 10

1.5 A3 A20 A24 V120 mOhmsSmd/SmtSmd/Smt1812 (4532 METRIC)1812L  - 40 C+ 85 C Cut Tape
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 : 83720
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0579

Multiples of: 5

500 mA1 A100 A24 V1 OhmsSmd/SmtSmd/Smt1812 (4532 METRIC)Minismd- 40 C to + 85 C    Reel
1206L110THYR


Resettable Fuses - PPTC PTC 8V 1206 1.1A POLYFUSE SMD THIN
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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 : 83090
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0248

Multiples of: 10

1.1 A2.2 A100 A8 VDC180 mOhmsPCB MountSMD/SMT1206 (3216 METRIC)1206L  - 40 C+ 85 C Reel , Cut Tape
1812L050/30PR


Polymeric PTC Resettable Fuse 30V 500 mA Ih Surface Mount 1812 (4532 Metric), Concave
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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 : 73433
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0516

Multiples of: 5

               
RXEF075-2


Resettable Fuses - PPTC Radial Lead .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 : 72750
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2437

Multiples of: 1

0.75 A1.5 A40 A72 VDC600 mOhmsThrough HoleRadial Rxef- 40 C to + 85 C5.8 Mm   Reel
1812L020PR


Resettable Fuses - PPTC 30V 1812 .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 : 72381
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0243

Multiples of: 10

200 mA400 mA100 A30 VDC5 OhmsPCB MountSMD/SMT1812 (4532 METRIC)1812L  - 40 C+ 85 C Reel , Cut Tape
LR4-380F


Resettable Fuses - PPTC LR4-380F
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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 : 64960
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.3718

Multiples of: 1

3.8 A8.3 A100 A15 VDC26 mOhmsStrapAxial Lr4- 40 C to + 125 C - 40 C+ 125 C Bulk
16R400GU


Resettable Fuses - PPTC PTC 16V 4A POLY RADIAL LEADS
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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 : 63494
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2956

Multiples of: 1

4 A6.8 A100 A16 VDC60 mOhmsThrough HoleRadial Usbr- 40 C to + 85 C5.1 Mm- 40 C+ 85 C Bulk
MINISMDC260F-2


Resettable Fuses - PPTC 2.6A 6V 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 : 57239
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2151

Multiples of: 1

2.6 A5 A100 A12 V47 mOhmsSmd/SmtSmd/Smt1812 (4532 METRIC)Minismd  - 40 C+ 85 C Cut Tape
1812L110/33MR


Resettable Fuses - PPTC PTC 33V 1.10A POLY 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 : 53641
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0595

Multiples of: 5

1.1 A1.95 A20 A33 V200 mOhmsSmd/SmtSmd/Smt1812 (4532 METRIC)1812L  - 40 C+ 85 C Cut Tape
1206L012WR


Resettable Fuses - PPTC 30V 1206 .125A 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 : 50546
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0294

Multiples of: 10

0.125 A0.29 A100 A30 VDC6 OhmsSmd/SmtSmd/Smt1206 (3216 METRIC)1206L- 40 C to + 85 C    Reel
SMD250F-2


Resettable Fuses - PPTC 2.5A 15V 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 : 49470
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.2395

Multiples of: 1500

2.5 A5 A40 A15 VDC85 mOhmsSmd/SmtSmd/Smt3425 (8763 METRIC)Smd- 40 C to + 85 C    Reel
2920L185DR


Resettable Fuses - PPTC 1.85A 33V 2920
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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 : 32490
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0972

Multiples of: 5

1.85 A3.7 A40 A33 V150 mOhmsSmd/SmtSmd/Smt2920 (7351 METRIC)2920L  - 40 C+ 85 C Cut Tape
1210L005WR


Resettable Fuses - PPTC 0.05A 30V 1210
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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 : 31820
Ship by Fri. 25 Jul to Wed. 30 Jul Calender.png

USD 0.0489

Multiples of: 5

50 mA150 mA10 A30 V50 OhmsSmd/SmtSmd/Smt1210 (3225 METRIC)1210L  - 40 C+ 85 C Cut Tape
30R400UMR


Polymeric PTC Resettable Fuse 30V 4 A Ih Through Hole Radial, Disc
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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 : 31688
Ship by Wed. 09 Jul to Fri. 11 Jul Calender.png

USD 0.484

Multiples of: 1

4 A8 A40 A30 VDC50 mOhmsThrough HoleRadial 30R- 40 C to + 85 C5.1 Mm- 40 C+ 85 C Ammo Pack
NANOSMDC075F-2 /RF1348-000


PTC Resettable Fuses 1206 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 : 4039
Ship by Fri. 11 Jul to Thu. 17 Jul Calender.png

USD 0.185

Multiples of: 1

750 mA1.5 A100 A6 V0.3 OhmsSmd/SmtSmd/Smt1206 (3216 METRIC)Nanosmd- 40 C to + 85 C    Reel
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