Resettable Fuses - PPTC

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PolySwitch Surface-Mount Resettable PTCs

Littelfuse PolySwitch Surface-Mount (SMD) Resettable PTCs provide overcurrent protection for applications where space is at a premium, and resettable protection is desired. The components are reliable and capable of protecting computers and consumer electronics against temporary overcurrent faults. Package sizes range from 0402 to 3425, while the current hold ranges from 50mA to 7.0A. The Littelfuse PolySwitch SMD product family is qualified to strict automotive standards (per AECQ200). As a result, these PTCs are suitable for protecting electronic control units (ECUs) against damage from faults that would otherwise require costly, complete module replacement.

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Results: 406

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Part #

Resettable Fuses - PPTC 24V 6.0A-HD 100A MAX

2920L600/24SLER
Littelfuse
1: $3.797
6.816In Stock

Mfr. Part #
2920L600/24SLER

Mouser Part #
576-2920L600/24SLER

Littelfuse

Resettable Fuses - PPTC 24V 6.0A-HD 100A MAX

Learn More

Datasheet

6.816In Stock

Cut Tape

$3.797

$3.145

$2.903

$2.408

View

Reel

$1.788

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Low Rho

SMD/SMT

6 A

24 VDC

12 A

50 A

12 mOhms

2920 (7450 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC RF5030-000

nanoASMDCH005F-2
Littelfuse
1: $1.209
4.044In Stock

Mfr. Part #
nanoASMDCH005F-2

Mouser Part #
576-NANOASMDCH005F-2

Littelfuse

Resettable Fuses - PPTC RF5030-000

Learn More

Datasheet

4.044In Stock

Cut Tape

$1.209

$1.115

$906

$850

Reel

$588

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

nanoASMD

SMD/SMT

50 mA

30 VDC

150 mA

20 A

3.5 Ohms

1206 (3216 metric)

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 30V 160MA-HD 20A SMD

NANOASMDCH016F-2
Littelfuse
1: $747
5.101In Stock

Mfr. Part #
NANOASMDCH016F-2

Mouser Part #
576-NANOASMDCH016F-2

Littelfuse

Resettable Fuses - PPTC 30V 160MA-HD 20A SMD

Learn More

Datasheet

5.101In Stock

Cut Tape

$747

$685

$568

$525

View

Reel

$330

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

nanoASMDCH

SMD/SMT

160 mA

30 VDC

800 mA

20 A

700 mOhms

1206 (3216 metric)

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC RF5028-000

nanoASMDCH020F-2
Littelfuse
1: $1.209
4.770In Stock

Mfr. Part #
nanoASMDCH020F-2

Mouser Part #
576-NANOASMDCH020F-2

Littelfuse

Resettable Fuses - PPTC RF5028-000

Learn More

Datasheet

4.770In Stock

Cut Tape

$1.209

$1.115

$907

$850

View

Reel

$561

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

nanoASMD

SMD/SMT

200 mA

30 VDC

600 mA

20 A

600 mOhms

1206 (3216 metric)

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 30V 350MA-HD 20A SMD

NANOASMDCH035F/30-2
Littelfuse
1: $1.209
7.095In Stock

Mfr. Part #
NANOASMDCH035F/30-2

Mouser Part #
576-NANOSMDCH035F302

Littelfuse

Resettable Fuses - PPTC 30V 350MA-HD 20A SMD

Learn More

Datasheet

7.095In Stock

Cut Tape

$1.209

$1.115

$893

$850

View

Reel

$561

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

nanoASMDCH

SMD/SMT

350 mA

30 VDC

1.75 A

20 A

400 mOhms

1206 (3216 metric)

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 16V 1.1A-HD 20A SMD

RF5033-000
Littelfuse
1: $1.209
4.332In Stock

Mfr. Part #
RF5033-000

Mouser Part #
576-RF5033-000

Littelfuse

Resettable Fuses - PPTC 16V 1.1A-HD 20A SMD

Learn More

Datasheet

4.332In Stock

Cut Tape

$1.209

$1.115

$906

$872

View

Reel

$561

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

Automotive SMD

SMD/SMT

1.1 A

16 VDC

3.3 A

20 A

500 mOhms

1210 (3225 metric)

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .37A 60V SMD AEC-Q200

ASMD050F-2
Littelfuse
1: $936
3.317In Stock

Mfr. Part #
ASMD050F-2

Mouser Part #
650-ASMD050F-2

Littelfuse

Resettable Fuses - PPTC .37A 60V SMD AEC-Q200

Learn More

Datasheet

3.317In Stock

Cut Tape

$936

$858

$698

$657

Reel

$396

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

ASMD

SMD/SMT

370 mA

60 VDC

980 mA

10 A

1.4 Ohms

2920 (7450 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .9A 30V SMD AEC-Q200

ASMD100F-2
Littelfuse
1: $852
4.925In Stock

Mfr. Part #
ASMD100F-2

Mouser Part #
650-ASMD100F-2

Littelfuse

Resettable Fuses - PPTC .9A 30V SMD AEC-Q200

Learn More

Datasheet

4.925In Stock

Cut Tape

$852

$786

$653

$597

Reel

$363

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

ASMD

SMD/SMT

900 mA

30 VDC

2.16 A

40 A

480 mOhms

2920 (7450 metric)

- 40 C

+ 85 C

AEC-Q100

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .75A 33VDC 40A 2920 AEC-Q200

ASMDC075F-2
Littelfuse
1: $1.304
5.033In Stock

Mfr. Part #
ASMDC075F-2

Mouser Part #
650-ASMDC075F-2

Littelfuse

Resettable Fuses - PPTC .75A 33VDC 40A 2920 AEC-Q200

Learn More

Datasheet

5.033In Stock

Cut Tape

$1.304

$980

$735

$718

View

Reel

$440

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ASMDC

PCB Mount

SMD/SMT

750 mA

33 VDC

1.5 A

40 A

610 mOhms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.25A 33VDC 40A 2920 AEC-Q200

ASMDC125F/33-2
Littelfuse
1: $1.010
6.773In Stock

Mfr. Part #
ASMDC125F/33-2

Mouser Part #
650-ASMDC125F/33-2

Littelfuse

Resettable Fuses - PPTC 1.25A 33VDC 40A 2920 AEC-Q200

Learn More

Datasheet

6.773In Stock

Cut Tape

$1.010

$909

$736

$699

View

Reel

$404

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ASMDC

PCB Mount

SMD/SMT

1.25 A

33 VDC

2.5 A

40 A

250 mOhms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.85A 33VDC 40A 2920 AEC-Q200

ASMDC185F/33-2
Littelfuse
1: $1.010
7.818In Stock

Mfr. Part #
ASMDC185F/33-2

Mouser Part #
650-ASMDC185F/33-2

Littelfuse

Resettable Fuses - PPTC 1.85A 33VDC 40A 2920 AEC-Q200

Learn More

Datasheet

7.818In Stock

Cut Tape

$1.010

$932

$753

$714

View

Reel

$404

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ASMDC

SMD/SMT

1.85 A

33 VDC

3.7 A

40 A

150 mOhms

2920 (7450 metric)

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 3A 24VDC 40A 2920 AEC-Q200

ASMDC300F/24-2
Littelfuse
1: $1.010
4.051In Stock

Mfr. Part #
ASMDC300F/24-2

Mouser Part #
650-ASMDC300F/24-2

Littelfuse

Resettable Fuses - PPTC 3A 24VDC 40A 2920 AEC-Q200

Learn More

Datasheet

4.051In Stock

Cut Tape

$1.010

$929

$754

$713

View

Reel

$404

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ASMDC

PCB Mount

SMD/SMT

3 A

24 VDC

6 A

40 A

72 mOhms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .55A 60V 10A Imax

DECASMDC050F/60-2
Littelfuse
1: $547
7.323In Stock
14.000Expected 12/3/2026

Mfr. Part #
DECASMDC050F/60-2

Mouser Part #
650-DECASMDC050F/60

Littelfuse

Resettable Fuses - PPTC .55A 60V 10A Imax

Learn More

Datasheet

7.323In Stock

14.000Expected 12/3/2026

Cut Tape

$547

$500

$415

$383

View

Reel

$317

MouseReel Available

Min.: 1
Mult.: 1

: 1.000

decaSMD

SMD/SMT

550 mA

60 VDC

1.1 A

10 A

1.1 Ohms

2018 (5045 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .1A 15VDC 10A 0603 AEC-Q200

FEMTOASMDC010F/15-2
Littelfuse
1: $1.262
3.389In Stock

Mfr. Part #
FEMTOASMDC010F/15-2

Mouser Part #
650-FEMTASMDC010F152

Littelfuse

Resettable Fuses - PPTC .1A 15VDC 10A 0603 AEC-Q200

Learn More

Datasheet

3.389In Stock

Cut Tape

$1.262

$1.167

$949

$889

View

Reel

$514

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoASMD

PCB Mount

SMD/SMT

100 mA

15 VDC

300 mA

10 A

14 Ohms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .05A 15VDC 10A 0603 AEC-Q200

FEMTOASMDC005F-2
Littelfuse
1: $1.010
4.348In Stock

Mfr. Part #
FEMTOASMDC005F-2

Mouser Part #
650-FEMTOASMDC005F-2

Littelfuse

Resettable Fuses - PPTC .05A 15VDC 10A 0603 AEC-Q200

Learn More

Datasheet

4.348In Stock

Cut Tape

$1.010

$892

$736

$693

View

Reel

$404

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoASMD

PCB Mount

SMD/SMT

50 mA

15 VDC

150 mA

10 A

30 Ohms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .08A 12VDC 10A 0603 AEC-Q200

FEMTOASMDC008F-2
Littelfuse
1: $1.010
6.806In Stock

Mfr. Part #
FEMTOASMDC008F-2

Mouser Part #
650-FEMTOASMDC008F-2

Littelfuse

Resettable Fuses - PPTC .08A 12VDC 10A 0603 AEC-Q200

Learn More

Datasheet

6.806In Stock

Cut Tape

$1.010

$877

$698

$667

View

Reel

$404

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoASMD

PCB Mount

SMD/SMT

80 mA

12 VDC

200 mA

10 A

14 Ohms

- 40 C

+ 85 C

AEC-Q200

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 15V 50MA-HD 40A MAX

FEMTOSMDC005F-2
Littelfuse
1: $862
11.441In Stock

Mfr. Part #
FEMTOSMDC005F-2

Mouser Part #
650-FEMTOSMDC005F-2

Littelfuse

Resettable Fuses - PPTC 15V 50MA-HD 40A MAX

Learn More

Datasheet

11.441In Stock

Cut Tape

$862

$778

$655

$599

View

Reel

$338

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoSMD

PCB Mount

SMD/SMT

50 mA

15 VDC

150 mA

40 A

30 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 14 Ohms 40 A 12 VDC - 40 C+ 85 C

FEMTOSMDC008F-2
Littelfuse
1: $862
4.378In Stock

Mfr. Part #
FEMTOSMDC008F-2

Mouser Part #
650-FEMTOSMDC008F-2

Littelfuse

Resettable Fuses - PPTC 14 Ohms 40 A 12 VDC - 40 C+ 85 C

Learn More

Datasheet

4.378In Stock

Cut Tape

$862

$790

$635

$599

View

Reel

$337

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoSMD

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 12V 100MA-HD 40A 0603

FEMTOSMDC010F-2
Littelfuse
1: $862
6.205In Stock

Mfr. Part #
FEMTOSMDC010F-2

Mouser Part #
650-FEMTOSMDC010F-2

Littelfuse

Resettable Fuses - PPTC 12V 100MA-HD 40A 0603

Learn More

Datasheet

6.205In Stock

Cut Tape

$862

$738

$635

$599

View

Reel

$338

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

femtoSMD

PCB Mount

SMD/SMT

100 mA

12 VDC

250 mA

40 A

8 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .05A 30V 10A IMAX

MICROSMD005F-2
Littelfuse
1: $536
48.127In Stock

Mfr. Part #
MICROSMD005F-2

Mouser Part #
650-MICROSMD005F-2

Littelfuse

Resettable Fuses - PPTC .05A 30V 10A IMAX

Learn More

Datasheet

48.127In Stock

Cut Tape

$536

$479

$406

$375

View

Reel

$222

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

microSMD

SMD/SMT

50 mA

30 VDC

150 mA

10 A

50 Ohms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .35A 6V 40A Imax

MICROSMD035F-2
Littelfuse
1: $631
7.258In Stock

Mfr. Part #
MICROSMD035F-2

Mouser Part #
650-MICROSMD035F-2

Littelfuse

Resettable Fuses - PPTC .35A 6V 40A Imax

Learn More

Datasheet

7.258In Stock

Cut Tape

$631

$574

$476

$440

View

Reel

$244

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

microSMD

SMD/SMT

350 mA

6 VDC

750 mA

40 A

1.3 Ohms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .5A 13.2V 40A Imax

MICROSMD050F-2
Littelfuse
1: $526
5.427In Stock
24.000Expected 10/27/2026

Mfr. Part #
MICROSMD050F-2

Mouser Part #
650-MICROSMD050F-2

Littelfuse

Resettable Fuses - PPTC .5A 13.2V 40A Imax

Learn More

Datasheet

5.427In Stock

24.000Expected 10/27/2026

Cut Tape

$526

$479

$398

$367

View

Reel

$255

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

microSMD

SMD/SMT

500 mA

13.2 VDC

1 A

40 A

900 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .75A 6V 40A Imax

MICROSMD075F-2
Littelfuse
1: $631
6.476In Stock

Mfr. Part #
MICROSMD075F-2

Mouser Part #
650-MICROSMD075F-2

Littelfuse

Resettable Fuses - PPTC .75A 6V 40A Imax

Learn More

Datasheet

6.476In Stock

Cut Tape

$631

$536

$476

$398

View

Reel

$244

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

microSMD

PCB Mount

SMD/SMT

750 mA

6 VDC

1.5 A

40 A

400 mOhms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.5A 6V 40A Imax

MICROSMD150F-2
Littelfuse
1: $610
6.874In Stock

Mfr. Part #
MICROSMD150F-2

Mouser Part #
650-MICROSMD150F-2

Littelfuse

Resettable Fuses - PPTC 1.5A 6V 40A Imax

Learn More

Datasheet

6.874In Stock

Cut Tape

$610

$526

$463

$427

View

Reel

$238

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

microSMD

SMD/SMT

1.5 A

6 VDC

3 A

40 A

110 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC Polyswitch 4.2A

MICROSMD200F-2
Littelfuse
1: $757
4.723In Stock

Mfr. Part #
MICROSMD200F-2

Mouser Part #
650-MICROSMD200F-2

Littelfuse

Resettable Fuses - PPTC Polyswitch 4.2A

Learn More

Datasheet

4.723In Stock

Cut Tape

$757

$691

$573

$529

Reel

$304

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

microSMD

SMD/SMT

2 A

6 VDC

5 A

100 A

60 mOhms

1210 (3225 metric)

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

PolySwitch Surface-Mount Resettable PTCs

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0603L
0805L
1206L
1210L
1812L
2016L
250S
2920L
AHS
ASMD
ASMDC
Automotive SMD
decaSMD
femtoASMD
femtoSMD
Low Rho
microASMD
microSMD
midSMD
miniASMD

10 mA
20 mA
30 mA
40 mA
50 mA
80 mA
100 mA
120 mA
125 mA
130 mA
140 mA
160 mA
200 mA
230 mA
250 mA
300 mA
350 mA
370 mA
500 mA
550 mA

6 V
6 VDC
8 VDC
9 VDC
12 V
12 VDC
13.2 VDC
15 V
15 VDC
16 V
16 VDC
18 VDC
24 VDC
30 V
30 VDC
33 VDC
36 V
36 VDC
48 VDC
60 VDC

50 mA
60 mA
90 mA
120 mA
150 mA
200 mA
250 mA
260 mA
280 mA
290 mA
300 mA
340 mA
350 mA
370 mA
390 mA
400 mA
420 mA
450 mA
470 mA
480 mA

3.6 mOhms
5.5 mOhms
7 mOhms
10 mOhms
11 mOhms
12 mOhms
14 mOhms
15 mOhms
16 mOhms
18 mOhms
20 mOhms
21 mOhms
24 mOhms
25 mOhms
26 mOhms
30 mOhms
35 mOhms
36 mOhms
40 mOhms
43 mOhms