Resettable Fuses - PPTC – Mouser United Kingdom

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PTC Fuses for AC/DC Power Supplies

A Positive Thermal Coefficient fuse, or PTC thermistor, is a thermally sensitive semiconductor resistor that increases in resistance as temperature increases to limit current to a load. When the voltage input for a power supply is too far above or below what is specified, the excess current can damage components. Besides shutting down the power supply altogether, one can effectively limit the current by using the predictable resistive response of a PTC.

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Part #

Resettable Fuses - PPTC 60V POLYFUSE 1.10A RADIAL LEADS

60R110XU
Littelfuse
1: £0.766
1,069In Stock
1,500Expected 07/10/2026

Mfr. Part No.
60R110XU

Mouser Part No
576-60R110XU

Littelfuse

Resettable Fuses - PPTC 60V POLYFUSE 1.10A RADIAL LEADS

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Datasheet

1,069In Stock

1,500Expected 07/10/2026

£0.766

£0.705

£0.572

£0.54

View

Min.: 1
Mult.: 1

60R

PCB Mount

Radial

1.1 A

60 VDC

2.2 A

40 A

380 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax

LVR012K
Littelfuse
1: £0.511
1,461In Stock

Mfr. Part No.
LVR012K

Mouser Part No
650-LVR012K

Littelfuse

Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax

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Datasheet

1,461In Stock

£0.511

£0.467

£0.388

£0.358

View

Min.: 1
Mult.: 1

LVR

PCB Mount

Radial

120 mA

240 VAC/VDC

300 mA

1.2 A

12 Ohms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC .25A 240VAC 20/3.5A Imax

LVR025S
Littelfuse
1: £0.533
3,691In Stock

Mfr. Part No.
LVR025S

Mouser Part No
650-LVR025S

Littelfuse

Resettable Fuses - PPTC .25A 240VAC 20/3.5A Imax

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Datasheet

3,691In Stock

£0.533

£0.488

£0.405

£0.374

View

Min.: 1
Mult.: 1

LVR

PCB Mount

Radial

250 mA

120 VAC/VDC

560 mA

20 A

3.8 Ohms

- 20 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC .1A 30V Micro SMD AEC-Q200

MICROASMD010F-2
Littelfuse
1: £0.458
734In Stock
8,000Expected 13/10/2026

Mfr. Part No.
MICROASMD010F-2

Mouser Part No
650-MICROASMD010F-2

Littelfuse

Resettable Fuses - PPTC .1A 30V Micro SMD AEC-Q200

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Datasheet

734In Stock

8,000Expected 13/10/2026

Cut Tape

£0.458

£0.422

£0.351

£0.324

View

Reel

£0.182

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

microASMD

SMD/SMT

100 mA

30 VDC

250 mA

10 A

15 Ohms

1210 (3225 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .1A 60V Mini SMD AEC-Q200

MINIASMDC010F-2
Littelfuse
1: £0.458
211In Stock
10,000Expected 18/08/2026

Mfr. Part No.
MINIASMDC010F-2

Mouser Part No
650-MINIASMDC010F-2

Littelfuse

Resettable Fuses - PPTC .1A 60V Mini SMD AEC-Q200

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Datasheet

211In Stock

10,000Expected 18/08/2026

Cut Tape

£0.458

£0.422

£0.351

£0.324

Reel

£0.195

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

100 mA

60 VDC

300 mA

40 A

12.7 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .14A 60V Mini SMD AEC-Q200

MINIASMDC014F-2
Littelfuse
1: £0.421
3,803In Stock

Mfr. Part No.
MINIASMDC014F-2

Mouser Part No
650-MINIASMDC014F-2

Littelfuse

Resettable Fuses - PPTC .14A 60V Mini SMD AEC-Q200

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Datasheet

3,803In Stock

Cut Tape

£0.421

£0.386

£0.32

£0.295

View

Reel

£0.178

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

140 mA

60 VDC

280 mA

10 A

6 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .2A 30V Mini SMD AEC-Q200

MINIASMDC020F-2
Littelfuse
1: £0.421
4,800In Stock

Mfr. Part No.
MINIASMDC020F-2

Mouser Part No
650-MINIASMDC020F-2

Littelfuse

Resettable Fuses - PPTC .2A 30V Mini SMD AEC-Q200

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Datasheet

4,800In Stock

Cut Tape

£0.421

£0.386

£0.32

£0.295

View

Reel

£0.178

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

200 mA

30 VDC

400 mA

10 A

3.3 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .3A 30V Mini SMD AEC-Q200

MINIASMDC030F-2
Littelfuse
1: £0.421
796In Stock
10,000Expected 24/11/2026

Mfr. Part No.
MINIASMDC030F-2

Mouser Part No
650-MINIASMDC030F-2

Littelfuse

Resettable Fuses - PPTC .3A 30V Mini SMD AEC-Q200

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Datasheet

796In Stock

10,000Expected 24/11/2026

Cut Tape

£0.421

£0.386

£0.32

£0.295

Reel

£0.178

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

300 mA

30 VDC

600 mA

40 A

1.75 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.1A 16V Mini SMD AEC-Q200

MINIASMDC110F/16-2
Littelfuse
1: £0.421
1,988In Stock
2,000Expected 18/08/2026

Mfr. Part No.
MINIASMDC110F/16-2

Mouser Part No
650-MINIASMDC110F/16

Littelfuse

Resettable Fuses - PPTC 1.1A 16V Mini SMD AEC-Q200

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Datasheet

1,988In Stock

2,000Expected 18/08/2026

Cut Tape

£0.421

£0.382

£0.318

£0.292

View

Reel

£0.223

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

1.1 A

16 VDC

2.2 A

100 A

180 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.1A 24V Mini SMD AEC-Q200

MINIASMDC110F/24-2
Littelfuse
1: £0.54
1,414In Stock
1,500Expected 02/11/2026

Mfr. Part No.
MINIASMDC110F/24-2

Mouser Part No
650-MINIASMDC110F/24

Littelfuse

Resettable Fuses - PPTC 1.1A 24V Mini SMD AEC-Q200

Learn More

Datasheet

1,414In Stock

1,500Expected 02/11/2026

Cut Tape

£0.54

£0.48

£0.409

£0.359

Reel

£0.236

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

miniASMD

SMD/SMT

1.1 A

24 VDC

2.2 A

20 A

180 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.25A 16V Mini SMD AEC-Q200

MINIASMDC125F/16-2
Littelfuse
1: £0.458
1,734In Stock

Mfr. Part No.
MINIASMDC125F/16-2

Mouser Part No
650-MINIASMDC125F/16

Littelfuse

Resettable Fuses - PPTC 1.25A 16V Mini SMD AEC-Q200

Learn More

Datasheet

1,734In Stock

Cut Tape

£0.458

£0.407

£0.351

£0.305

View

Reel

£0.201

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

1.25 A

16 VDC

2.5 A

100 A

140 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.5A 16V Mini SMD AEC-Q200

MINIASMDC150F/16-2
Littelfuse
1: £0.421
2,453In Stock

Mfr. Part No.
MINIASMDC150F/16-2

Mouser Part No
650-MINIASMDC150F/16

Littelfuse

Resettable Fuses - PPTC 1.5A 16V Mini SMD AEC-Q200

Learn More

Datasheet

2,453In Stock

Cut Tape

£0.421

£0.382

£0.318

£0.292

Reel

£0.247

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniASMD

SMD/SMT

1.5 A

16 VDC

2.8 A

100 A

110 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.5A 24V Mini SMD AEC-Q200

MINIASMDC150F/24-2
Littelfuse
1: £0.615
2,102In Stock

Mfr. Part No.
MINIASMDC150F/24-2

Mouser Part No
650-MINIASMDC150F/24

Littelfuse

Resettable Fuses - PPTC 1.5A 24V Mini SMD AEC-Q200

Learn More

Datasheet

2,102In Stock

Cut Tape

£0.615

£0.564

£0.453

£0.428

Reel

£0.32

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

miniASMD

SMD/SMT

1.5 A

24 VDC

3 A

20 A

120 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 2.6A 16V Mini SMD AEC-Q200

MINIASMDC260F/16-2
Littelfuse
1: £0.563
3,217In Stock

Mfr. Part No.
MINIASMDC260F/16-2

Mouser Part No
650-MINIASMDC260F/16

Littelfuse

Resettable Fuses - PPTC 2.6A 16V Mini SMD AEC-Q200

Learn More

Datasheet

3,217In Stock

Cut Tape

£0.563

£0.517

£0.43

£0.395

Reel

£0.247

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

miniASMD

SMD/SMT

2.6 A

16 VDC

5 A

100 A

50 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.10A 16V 100A Imax

MINISMDC110F/16-2
Littelfuse
1: £0.436
4,953In Stock
12,000Expected 29/09/2026

Mfr. Part No.
MINISMDC110F/16-2

Mouser Part No
650-MINIC110F/16-2

Littelfuse

Resettable Fuses - PPTC 1.10A 16V 100A Imax

Learn More

Datasheet

4,953In Stock

12,000Expected 29/09/2026

Cut Tape

£0.436

£0.375

£0.33

£0.287

View

Reel

£0.222

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

miniSMD

PCB Mount

SMD/SMT

1812 (4532 metric)

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .2A 24V Nano SMD AEC-Q200

NANOASMDC020F-2
Littelfuse
1: £0.405
221In Stock
6,000Expected 26/10/2026

Mfr. Part No.
NANOASMDC020F-2

Mouser Part No
650-NANOASMDC020F-2

Littelfuse

Resettable Fuses - PPTC .2A 24V Nano SMD AEC-Q200

Learn More

Datasheet

221In Stock

6,000Expected 26/10/2026

Cut Tape

£0.405

£0.357

£0.31

£0.267

Reel

£0.164

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

nanoASMDC

SMD/SMT

200 mA

24 VDC

420 mA

100 A

3.1 Ohms

1206 (3216 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .35A RESETTABLE SMD FUSE

NANOSMDC035F-2
Littelfuse
1: £0.405
2,302In Stock
48,000On Order

Mfr. Part No.
NANOSMDC035F-2

Mouser Part No
650-NANOSMDC035F-2

Littelfuse

Resettable Fuses - PPTC .35A RESETTABLE SMD FUSE

Learn More

Datasheet

2,302In Stock

48,000On Order

Cut Tape

£0.405

£0.365

£0.308

£0.273

Reel

£0.163

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

nanoSMD

SMD/SMT

350 mA

16 VDC

750 mA

20 A

1.35 Ohms

1206 (3216 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC RGEF1200

RGEF1200
Littelfuse
1: £0.788
979In Stock

Mfr. Part No.
RGEF1200

Mouser Part No
650-RGEF1200

Littelfuse

Resettable Fuses - PPTC RGEF1200

Learn More

Datasheet

979In Stock

£0.788

£0.726

£0.603

£0.557

View

Min.: 1
Mult.: 1

RGEF

PCB Mount

Radial

12 A

16 VDC

20.4 A

100 A

8.6 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC RGEF700

RGEF700
Littelfuse
1: £0.526
286In Stock
500Expected 14/12/2026

Mfr. Part No.
RGEF700

Mouser Part No
650-RGEF700

Littelfuse

Resettable Fuses - PPTC RGEF700

Learn More

Datasheet

286In Stock

500Expected 14/12/2026

£0.526

£0.48

£0.399

£0.368

View

Min.: 1
Mult.: 1

RGEF

PCB Mount

Radial

7 A

16 VDC

11.9 A

100 A

20 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC RGEF900

RGEF900
Littelfuse
1: £0.623
2,210In Stock

Mfr. Part No.
RGEF900

Mouser Part No
650-RGEF900

Littelfuse

Resettable Fuses - PPTC RGEF900

Learn More

Datasheet

2,210In Stock

£0.623

£0.572

£0.475

£0.438

View

Min.: 1
Mult.: 1

RGEF

PCB Mount

Radial

9 A

16 VDC

15.3 A

100 A

13.5 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 60V 40A 1.40W Radial-leaded Device

RKEF075
Littelfuse
1: £0.361
617In Stock
1,000Expected 14/12/2026

Mfr. Part No.
RKEF075

Mouser Part No
650-RKEF075

Littelfuse

Resettable Fuses - PPTC 60V 40A 1.40W Radial-leaded Device

Learn More

Datasheet

617In Stock

1,000Expected 14/12/2026

£0.361

£0.327

£0.271

£0.251

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

750 mA

60 VDC

1.5 A

40 A

390 mOhms

- 40 C

+ 85 C

5.84 mm

Bulk

Resettable Fuses - PPTC 30V 900MA 100A RUEF

RUEF090-AP
Littelfuse
1: £0.353
1,564In Stock

Mfr. Part No.
RUEF090-AP

Mouser Part No
650-RUEF090-AP

Littelfuse

Resettable Fuses - PPTC 30V 900MA 100A RUEF

Learn More

Datasheet

1,564In Stock

Cut Tape

£0.353

£0.32

£0.265

£0.245

View

Reel

£0.187

Min.: 1
Mult.: 1

: 2,000

RUEF

PCB Mount

Radial

900 mA

30 VDC

1.8 A

100 A

220 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 1.1A 30V 100A Imax

RUEF110
Littelfuse
1: £0.323
3,822In Stock
8,000Expected 13/10/2026

Mfr. Part No.
RUEF110

Mouser Part No
650-RUEF110

Littelfuse

Resettable Fuses - PPTC 1.1A 30V 100A Imax

Learn More

Datasheet

3,822In Stock

8,000Expected 13/10/2026

£0.323

£0.274

£0.236

£0.232

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

1.1 A

30 VDC

2.2 A

100 A

170 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 3A 30V 100A Imax

RUEF300-AP
Littelfuse
1: £0.578
2,275In Stock

Mfr. Part No.
RUEF300-AP

Mouser Part No
650-RUEF300-AP

Littelfuse

Resettable Fuses - PPTC 3A 30V 100A Imax

Learn More

Datasheet

2,275In Stock

£0.578

£0.485

£0.441

£0.343

Reel

£0.237

View

Min.: 1
Mult.: 1

: 1,000

RUEF

PCB Mount

Radial

3 A

30 VDC

6 A

100 A

80 mOhms

- 40 C

+ 85 C

5.8 mm

Ammo Pack

Resettable Fuses - PPTC 3A 30V 100A Imax

RUEF300K-2
Littelfuse
1: £0.48
1,717In Stock
2,500Expected 26/11/2026

Mfr. Part No.
RUEF300K-2

Mouser Part No
650-RUEF300K-2

Littelfuse

Resettable Fuses - PPTC 3A 30V 100A Imax

Learn More

Datasheet

1,717In Stock

2,500Expected 26/11/2026

Cut Tape

£0.48

£0.443

£0.368

£0.339

Reel

£0.199

View

Min.: 1
Mult.: 1

: 2,500

RUEF

PCB Mount

Radial

3 A

30 VDC

6 A

100 A

80 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

PTC Fuses for AC/DC Power Supplies

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0805L
1206L
1210L
16R
1812L
2016L
250R
250S
2920L
30R
600R
60R
72R
AHEF
ASMD
CMF-RL
CMF-SDP
LVR
MF-LS
MF-LSMF

50 mA
60 mA
80 mA
100 mA
110 mA
120 mA
130 mA
140 mA
150 mA
160 mA
170 mA
200 mA
250 mA
300 mA
330 mA
350 mA
400 mA
500 mA
750 mA
900 mA

150 mA
160 mA
200 mA
230 mA
240 mA
250 mA
260 mA
280 mA
290 mA
300 mA
320 mA
340 mA
370 mA
390 mA
400 mA
420 mA
450 mA
500 mA
560 mA
600 mA

8.6 mOhms
10.2 mOhms
13.5 mOhms
16 mOhms
20 mOhms
30 mOhms
31 mOhms
48 mOhms
50 mOhms
60 mOhms
68 mOhms
70 mOhms
75 mOhms
80 mOhms
97.5 mOhms
100 mOhms
110 mOhms
120 mOhms
125 mOhms
130 mOhms