Resettable Fuses - PPTC – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

Learn More

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 122

Applied Filters:

Manufacturer

Series

Mounting Style

Termination Style

Hold Current

Maximum Voltage

Trip Current

Current Rating - Max

Resistance

Package/Case

Minimum Operating Temperature

Maximum Operating Temperature

Lead Spacing

Qualification

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Resettable Fuses - PPTC SRP175F

SRP175F
Littelfuse
1: £0.443
6,754In Stock
8,000Expected 19/10/2026

Mfr. Part No.
SRP175F

Mouser Part No
650-SRP175F

Littelfuse

Resettable Fuses - PPTC SRP175F

Learn More

Datasheet

6,754In Stock

8,000Expected 19/10/2026

£0.443

£0.409

£0.34

£0.313

View

Min.: 1
Mult.: 1

SRP

Strap Mount

SMD/SMT

1.75 A

15 VDC

3.8 A

100 A

120 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC SRP200F

SRP200F
Littelfuse
1: £0.698
12,138In Stock
35,000Expected 07/12/2026

Mfr. Part No.
SRP200F

Mouser Part No
650-SRP200F

Littelfuse

Resettable Fuses - PPTC SRP200F

Learn More

Datasheet

12,138In Stock

35,000Expected 07/12/2026

£0.698

£0.539

£0.447

£0.413

View

Min.: 1
Mult.: 1

SRP

Strap Mount

SMD/SMT

2 A

30 VDC

4.4 A

100 A

100 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC .12A 60VDC 250VRMS

TRF250-120
Littelfuse
1: £0.533
7,728In Stock
2,000On Order

Mfr. Part No.
TRF250-120

Mouser Part No
650-TRF250-120

Littelfuse

Resettable Fuses - PPTC .12A 60VDC 250VRMS

Learn More

Datasheet

7,728In Stock

2,000On Order

£0.533

£0.491

£0.383

£0.367

View

Min.: 1
Mult.: 1

TRF250

PCB Mount

Radial

120 mA

60 VDC

240 mA

3 A

16 Ohms

- 40 C

+ 85 C

5 mm

Bulk

Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 10OHM

CMF-RL10-10-0
Bourns
1: £0.54
9,800In Stock

Mfr. Part No.
CMF-RL10-10-0

Mouser Part No
652-CMF-RL10-10-0

Bourns

Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 10OHM

Learn More

Datasheet

9,800In Stock

£0.54

£0.458

£0.416

£0.361

View

Min.: 1
Mult.: 1

CMF-RL

PCB Mount

Radial

150 mA

60 VDC

300 mA

3 A

10 Ohms

- 40 C

+ 125 C

5 mm

Tray

Resettable Fuses - PPTC 60V 100MA-HD 40A MAX

MF-MSMF010-2
Bourns
1: £0.255
65,855In Stock

Mfr. Part No.
MF-MSMF010-2

Mouser Part No
652-MF-MSMF010-2

Bourns

Resettable Fuses - PPTC 60V 100MA-HD 40A MAX

Learn More

Datasheet

65,855In Stock

Cut Tape

£0.255

£0.229

£0.191

£0.163

Reel

£0.109

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-MSMF

SMD/SMT

100 mA

60 VDC

300 mA

40 A

15 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 30V 120MA-HD 10A MAX

MF-NSMF012-2
Bourns
1: £0.248
34,382In Stock
48,000Expected 26/08/2026

Mfr. Part No.
MF-NSMF012-2

Mouser Part No
652-MF-NSMF012-2

Bourns

Resettable Fuses - PPTC 30V 120MA-HD 10A MAX

Learn More

Datasheet

34,382In Stock

48,000Expected 26/08/2026

Cut Tape

£0.248

£0.228

£0.19

£0.168

Reel

£0.119

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

MF-NSMF

SMD/SMT

120 mA

30 VDC

290 mA

10 A

8.5 Ohms

1206 (3216 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX

MF-RX110/72-2
Bourns
1: £0.323
4,119In Stock

Mfr. Part No.
MF-RX110/72-2

Mouser Part No
652-MF-RX110/72-2

Bourns

Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX

Learn More

Datasheet

4,119In Stock

Cut Tape

£0.323

£0.292

£0.244

£0.223

Reel

£0.144

View

Min.: 1
Mult.: 1

: 3,000

MF-RX/72

PCB Mount

Radial

1.1 A

72 VDC

2.2 A

40 A

250 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX

MF-R185
Bourns
1: £0.346
6,085In Stock
12,000Expected 07/09/2026

Mfr. Part No.
MF-R185

Mouser Part No
652-MFR185

Bourns

Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX

Learn More

Datasheet

6,085In Stock

12,000Expected 07/09/2026

£0.346

£0.314

£0.261

£0.236

View

Min.: 1
Mult.: 1

MF-R

PCB Mount

Radial

1.85 A

30 VDC

3.7 A

40 A

70 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS

16R1000GMR
Littelfuse
1: £1.26
1,606In Stock

Mfr. Part No.
16R1000GMR

Mouser Part No
576-16R1000GMR

Littelfuse

Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS

Learn More

Datasheet

1,606In Stock

Cut Tape

£1.26

£1.17

£0.969

£0.89

View

Reel

£0.611

Min.: 1
Mult.: 1

: 1,000

16R

PCB Mount

Radial

10 A

16 VDC

17 A

100 A

10.2 mOhms

- 40 C

+ 85 C

5.1 mm

Reel, Cut Tape

Resettable Fuses - PPTC PTC 16V 3A POLY RADIAL LEADS

16R300GU
Littelfuse
1: £0.488
1,375In Stock

Mfr. Part No.
16R300GU

Mouser Part No
576-16R300GU

Littelfuse

Resettable Fuses - PPTC PTC 16V 3A POLY RADIAL LEADS

Learn More

Datasheet

1,375In Stock

£0.488

£0.448

£0.373

£0.344

View

Min.: 1
Mult.: 1

16R

PCB Mount

Radial

3 A

16 VDC

5.1 A

100 A

97.5 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 1812 15V .5A

1812L050PR
Littelfuse
1: £0.405
1,633In Stock
8,000Expected 27/10/2026

Mfr. Part No.
1812L050PR

Mouser Part No
576-1812L050PR

Littelfuse

Resettable Fuses - PPTC 1812 15V .5A

Learn More

Datasheet

1,633In Stock

8,000Expected 27/10/2026

Cut Tape

£0.405

£0.368

£0.306

£0.281

View

Reel

£0.203

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1812L

SMD/SMT

500 mA

15 VDC

1 A

100 A

1 Ohms

1812 (4532 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1812 13.2V 0.75A

1812L075PR
Littelfuse
1: £0.413
4,336In Stock

Mfr. Part No.
1812L075PR

Mouser Part No
576-1812L075PR

Littelfuse

Resettable Fuses - PPTC 1812 13.2V 0.75A

Learn More

Datasheet

4,336In Stock

Cut Tape

£0.413

£0.371

£0.316

£0.287

Reel

£0.188

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1812L

SMD/SMT

750 mA

13.2 VDC

1.5 A

100 A

450 mOhms

1812 (4532 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PTC POLYFUSE TELECOM 60V/250V .080A

250R080ZR
Littelfuse
1: £0.684
2,076In Stock

Mfr. Part No.
250R080ZR

Mouser Part No
576-250R080ZR

Littelfuse

Resettable Fuses - PPTC PTC POLYFUSE TELECOM 60V/250V .080A

Learn More

Datasheet

2,076In Stock

£0.684

£0.622

£0.512

£0.481

View

Reel

£0.311

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

80 mA

60 VDC

160 mA

3 A

33 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RA

250S130-RADR
Littelfuse
1: £0.773
2,377In Stock

Mfr. Part No.
250S130-RADR

Mouser Part No
576-250S130-RADR

Littelfuse

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RA

Learn More

Datasheet

2,377In Stock

Cut Tape

£0.773

£0.659

£0.529

£0.505

View

Reel

£0.355

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

10 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB

250S130-RBDR
Littelfuse
1: £0.773
1,103In Stock
1,500Expected 21/09/2026

Mfr. Part No.
250S130-RBDR

Mouser Part No
576-250S130-RBDR

Littelfuse

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB

Learn More

Datasheet

1,103In Stock

1,500Expected 21/09/2026

Cut Tape

£0.773

£0.711

£0.576

£0.545

View

Reel

£0.355

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

13 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.10A 33V 2920

2920L100PR
Littelfuse
1: £0.638
3,718In Stock
32,000On Order

Mfr. Part No.
2920L100PR

Mouser Part No
576-2920L100

Littelfuse

Resettable Fuses - PPTC 1.10A 33V 2920

Learn More

Datasheet

3,718In Stock

32,000On Order

Cut Tape

£0.638

£0.464

£0.432

£0.397

Reel

£0.27

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

2920L

SMD/SMT

1.1 A

33 VDC

2.2 A

40 A

410 mOhms

2920 (7450 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 30V POLYFUSE 1.10A RADIAL LEADS

30R110UU
Littelfuse
1: £0.436
630In Stock

Mfr. Part No.
30R110UU

Mouser Part No
576-30R110UU

Littelfuse

Resettable Fuses - PPTC 30V POLYFUSE 1.10A RADIAL LEADS

Learn More

Datasheet

630In Stock

£0.436

£0.402

£0.333

£0.308

View

Min.: 1
Mult.: 1

30R

PCB Mount

Radial

1.1 A

30 VDC

2.2 A

40 A

170 mOhms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM

600R160UR
Littelfuse
1: £0.925
15In Stock
1,000Expected 01/12/2026

Mfr. Part No.
600R160UR

Mouser Part No
576-600R160UR

Littelfuse

Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM

Learn More

Datasheet

15In Stock

1,000Expected 01/12/2026

£0.925

£0.856

£0.707

£0.652

Reel

£0.464

View

Min.: 1
Mult.: 1

: 500

600R

PCB Mount

Radial

160 mA

60 VDC

320 mA

3 A

18 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 60V POLYFUSE .100A RADIAL LEADS

60R010XU
Littelfuse
1: £0.443
2,078In Stock

Mfr. Part No.
60R010XU

Mouser Part No
576-60R010XU

Littelfuse

Resettable Fuses - PPTC 60V POLYFUSE .100A RADIAL LEADS

Learn More

Datasheet

2,078In Stock

£0.443

£0.404

£0.335

£0.30

View

Min.: 1
Mult.: 1

60R

PCB Mount

Radial

100 mA

60 VDC

200 mA

40 A

7.5 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V POLYFUSE .300A RADIAL LEADS

60R030XU
Littelfuse
1: £0.405
969In Stock

Mfr. Part No.
60R030XU

Mouser Part No
576-60R030XU

Littelfuse

Resettable Fuses - PPTC 60V POLYFUSE .300A RADIAL LEADS

Learn More

Datasheet

969In Stock

£0.405

£0.369

£0.307

£0.281

View

Min.: 1
Mult.: 1

60R

PCB Mount

Radial

300 mA

60 VDC

600 mA

40 A

2.1 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V .400A RADIAL LEADS

60R040XPR
Littelfuse
1: £0.503
2,764In Stock

Mfr. Part No.
60R040XPR

Mouser Part No
576-60R040XPR

Littelfuse

Resettable Fuses - PPTC 60V .400A RADIAL LEADS

Learn More

Datasheet

2,764In Stock

£0.503

£0.461

£0.383

£0.354

View

Reel

£0.221

Min.: 1
Mult.: 1

: 2,000

60R

PCB Mount

Radial

400 mA

60 VDC

800 mA

40 A

1.29 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 60V POLYFUSE .400A RADIAL LEADS

60R040XU
Littelfuse
1: £0.375
2,449In Stock

Mfr. Part No.
60R040XU

Mouser Part No
576-60R040XU

Littelfuse

Resettable Fuses - PPTC 60V POLYFUSE .400A RADIAL LEADS

Learn More

Datasheet

2,449In Stock

£0.375

£0.342

£0.285

£0.263

View

Min.: 1
Mult.: 1

60R

PCB Mount

Radial

400 mA

60 VDC

800 mA

40 A

1.29 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V .500A RADIAL LEADS

60R050XPR
Littelfuse
1: £0.548
2,830In Stock

Mfr. Part No.
60R050XPR

Mouser Part No
576-60R050XPR

Littelfuse

Resettable Fuses - PPTC 60V .500A RADIAL LEADS

Learn More

Datasheet

2,830In Stock

£0.548

£0.47

£0.416

£0.361

View

Reel

£0.243

Min.: 1
Mult.: 1

: 2,000

60R

PCB Mount

Radial

500 mA

60 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 60V POLYFUSE .500A RADIAL LEADS

60R050XU
Littelfuse
1: £0.443
2,129In Stock

Mfr. Part No.
60R050XU

Mouser Part No
576-60R050XU

Littelfuse

Resettable Fuses - PPTC 60V POLYFUSE .500A RADIAL LEADS

Learn More

Datasheet

2,129In Stock

£0.443

£0.404

£0.335

£0.309

View

Min.: 1
Mult.: 1

60R

PCB Mount

Radial

500 mA

60 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 60V 1.10A RADIAL LEADS

60R110XMR
Littelfuse
1: £0.882
2,583In Stock

Mfr. Part No.
60R110XMR

Mouser Part No
576-60R110XMR

Littelfuse

Resettable Fuses - PPTC 60V 1.10A RADIAL LEADS

Learn More

Datasheet

2,583In Stock

£0.882

£0.811

£0.668

£0.616

View

Reel

£0.452

Min.: 1
Mult.: 1

: 1,000

60R

PCB Mount

Radial

1.1 A

60 VDC

2.2 A

40 A

380 mOhms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

PTC Fuses for AC/DC Power Supplies

Customer Service Office

Company

Resources

Support

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