Resettable Fuses - PPTC – Mouser Denmark

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Radial-Leaded PolySwitch Resettable PPTCs

Littelfuse Radial-Leaded Resettable PPTCs are designed to provide overcurrent protection for applications where space is not a concern, and resettable protection is preferred. With so many options in the radial-leaded PPTCs family, engineers can design with more flexibility. The components feature current ratings from 50mA to 15A, low resistance, and a fast time-to-trip. Higher voltage ratings (6V to 72V) allow for use in new applications. Littelfuse Radial-Leaded Resettable PPTCs are compatible with high-volume electronics assembly and can assist in meeting regulatory requirements.

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Part #

Resettable Fuses - PPTC 60V 40A 2.40W Radial-leaded Device

RKEF160
Littelfuse
1: 3,33 kr.
1.136In Stock

Mfr. Part No.
RKEF160

Mouser Part No
650-RKEF160

Littelfuse

Resettable Fuses - PPTC 60V 40A 2.40W Radial-leaded Device

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Datasheet

1.136In Stock

3,33 kr.

3,07 kr.

2,55 kr.

2,36 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

1.6 A

60 VDC

3.2 A

40 A

200 mOhms

- 40 C

+ 85 C

5.84 mm

Bulk

Resettable Fuses - PPTC 60V 40A 2.60W Radial-leaded Device

RKEF185
Littelfuse
1: 3,40 kr.
2.013In Stock
3.000Expected 19/02/2026

Mfr. Part No.
RKEF185

Mouser Part No
650-RKEF185

Littelfuse

Resettable Fuses - PPTC 60V 40A 2.60W Radial-leaded Device

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Datasheet

2.013In Stock

3.000Expected 19/02/2026

3,40 kr.

3,14 kr.

2,59 kr.

2,21 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

1.85 A

60 VDC

3.7 A

40 A

250 mOhms

- 40 C

+ 85 C

5.84 mm

Bulk

Resettable Fuses - PPTC 50 mOhms 40 A 60 VDC - 40 C+ 85 C

RKEF300-2
Littelfuse
1: 4,94 kr.
1.795In Stock

Mfr. Part No.
RKEF300-2

Mouser Part No
650-RKEF300-2

Littelfuse

Resettable Fuses - PPTC 50 mOhms 40 A 60 VDC - 40 C+ 85 C

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Datasheet

1.795In Stock

Cut Tape

4,94 kr.

4,56 kr.

3,74 kr.

3,49 kr.

Reel

2,39 kr.

View

Min.: 1
Mult.: 1

Reel: 1.000

RKEF

PCB Mount

Radial

3 A

60 VDC

6 A

40 A

50 mOhms

- 40 C

+ 85 C

5.84 mm

Reel, Cut Tape

Resettable Fuses - PPTC 60V 40A 3.40W Radial-leaded Device

RKEF375
Littelfuse
1: 4,36 kr.
801In Stock

Mfr. Part No.
RKEF375

Mouser Part No
650-RKEF375

Littelfuse

Resettable Fuses - PPTC 60V 40A 3.40W Radial-leaded Device

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Datasheet

801In Stock

4,36 kr.

4,00 kr.

3,32 kr.

3,06 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

3.75 A

60 VDC

7.5 A

40 A

40 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 60V 3.75A-HD 40A MAX

RKEF375K
Littelfuse
1: 4,42 kr.
99In Stock
250Expected 30/03/2026

Mfr. Part No.
RKEF375K

Mouser Part No
650-RKEF375K

Littelfuse

Resettable Fuses - PPTC 60V 3.75A-HD 40A MAX

Learn More

Datasheet

99In Stock

250Expected 30/03/2026

4,42 kr.

4,05 kr.

3,36 kr.

3,10 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

3.75 A

60 VDC

7.5 A

40 A

40 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 60V 40A 3.70W Radial-leaded Device

RKEF400
Littelfuse
1: 5,13 kr.
3.235In Stock

Mfr. Part No.
RKEF400

Mouser Part No
650-RKEF400

Littelfuse

Resettable Fuses - PPTC 60V 40A 3.70W Radial-leaded Device

Learn More

Datasheet

3.235In Stock

5,13 kr.

4,71 kr.

3,92 kr.

3,61 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

4 A

60 VDC

8 A

40 A

60 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 60V 40A 5.00W Radial-leaded Device

RKEF500
Littelfuse
1: 7,06 kr.
1.305In Stock
1.300Expected 13/05/2026

Mfr. Part No.
RKEF500

Mouser Part No
650-RKEF500

Littelfuse

Resettable Fuses - PPTC 60V 40A 5.00W Radial-leaded Device

Learn More

Datasheet

1.305In Stock

1.300Expected 13/05/2026

7,06 kr.

6,54 kr.

5,41 kr.

4,99 kr.

View

Min.: 1
Mult.: 1

RKEF

PCB Mount

Radial

5 A

60 VDC

10 A

40 A

50 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC RKEF500K-2

RKEF500K-2
Littelfuse
1: 8,06 kr.
944In Stock

Mfr. Part No.
RKEF500K-2

Mouser Part No
650-RKEF500K-2

Littelfuse

Resettable Fuses - PPTC RKEF500K-2

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Datasheet

944In Stock

Cut Tape

8,06 kr.

7,45 kr.

6,15 kr.

5,68 kr.

Reel

3,90 kr.

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

RKEF

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .9A 30V 100A Imax

RUEF090-2
Littelfuse
1: 3,01 kr.
3.278In Stock

Mfr. Part No.
RUEF090-2

Mouser Part No
650-RUEF090-2

Littelfuse

Resettable Fuses - PPTC .9A 30V 100A Imax

Learn More

Datasheet

3.278In Stock

Cut Tape

3,01 kr.

2,74 kr.

2,31 kr.

2,06 kr.

View

Reel

1,36 kr.

Min.: 1
Mult.: 1

Reel: 3.000

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 30V 900MA 100A RUEF

RUEF090-AP
Littelfuse
1: 2,76 kr.
1.724In Stock

Mfr. Part No.
RUEF090-AP

Mouser Part No
650-RUEF090-AP

Littelfuse

Resettable Fuses - PPTC 30V 900MA 100A RUEF

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Datasheet

1.724In Stock

Cut Tape

2,76 kr.

2,51 kr.

2,50 kr.

2,22 kr.

View

Reel

1,36 kr.

Min.: 1
Mult.: 1

Reel: 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 30V 1.1A-HD 100A RUEF

RUEF110-AP
Littelfuse
1: 3,08 kr.
1.966In Stock

Mfr. Part No.
RUEF110-AP

Mouser Part No
650-RUEF110-AP

Littelfuse

Resettable Fuses - PPTC 30V 1.1A-HD 100A RUEF

Learn More

Datasheet

1.966In Stock

Cut Tape

3,08 kr.

2,82 kr.

2,35 kr.

2,16 kr.

View

Reel

1,38 kr.

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2.000

RUEF

PCB Mount

Radial

1.1 A

30 VDC

2.2 A

100 A

170 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 1.1A 30V 40A Imax

RUEF110S
Littelfuse
1: 2,57 kr.
475In Stock

Mfr. Part No.
RUEF110S

Mouser Part No
650-RUEF110S

Littelfuse

Resettable Fuses - PPTC 1.1A 30V 40A Imax

Learn More

Datasheet

475In Stock

2,57 kr.

2,36 kr.

1,97 kr.

1,81 kr.

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 1.35A 30V 40A Imax

RUEF135-2
Littelfuse
1: 3,14 kr.
4.845In Stock
3.000Expected 19/02/2026

Mfr. Part No.
RUEF135-2

Mouser Part No
650-RUEF135-2

Littelfuse

Resettable Fuses - PPTC 1.35A 30V 40A Imax

Learn More

Datasheet

4.845In Stock

3.000Expected 19/02/2026

Cut Tape

3,14 kr.

2,86 kr.

2,41 kr.

2,22 kr.

Reel

1,34 kr.

View

Min.: 1
Mult.: 1

Reel: 3.000

RUEF

PCB Mount

Radial

1.35 A

30 VDC

2.7 A

40 A

130 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 30V 1.35A-HD 100A RUEF

RUEF135-AP
Littelfuse
1: 3,14 kr.
2.937In Stock

Mfr. Part No.
RUEF135-AP

Mouser Part No
650-RUEF135-AP

Littelfuse

Resettable Fuses - PPTC 30V 1.35A-HD 100A RUEF

Learn More

Datasheet

2.937In Stock

Cut Tape

3,14 kr.

2,90 kr.

2,41 kr.

2,22 kr.

View

Reel

1,42 kr.

Min.: 1
Mult.: 1

Reel: 2.000

RUEF

PCB Mount

Radial

1.35 A

30 VDC

2.7 A

100 A

130 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 1.35A 30V 40A Imax

RUEF135S
Littelfuse
1: 2,69 kr.
105In Stock

Mfr. Part No.
RUEF135S

Mouser Part No
650-RUEF135S

Littelfuse

Resettable Fuses - PPTC 1.35A 30V 40A Imax

Learn More

Datasheet

105In Stock

2,69 kr.

2,44 kr.

2,03 kr.

1,87 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

1.35 A

30 VDC

2.7 A

100 A

130 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 1.6A 30V 40A Imax

RUEF160-2
Littelfuse
1: 3,21 kr.
5.617In Stock

Mfr. Part No.
RUEF160-2

Mouser Part No
650-RUEF160-2

Littelfuse

Resettable Fuses - PPTC 1.6A 30V 40A Imax

Learn More

Datasheet

5.617In Stock

Cut Tape

3,21 kr.

2,95 kr.

2,45 kr.

2,27 kr.

Reel

1,37 kr.

View

Min.: 1
Mult.: 1

Reel: 3.000

RUEF

PCB Mount

Radial

1.6 A

30 VDC

3.2 A

100 A

110 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 1.6A 30V 40A Imax

RUEF160S
Littelfuse
1: 2,69 kr.
1.089In Stock

Mfr. Part No.
RUEF160S

Mouser Part No
650-RUEF160S

Littelfuse

Resettable Fuses - PPTC 1.6A 30V 40A Imax

Learn More

Datasheet

1.089In Stock

2,69 kr.

2,49 kr.

2,48 kr.

2,02 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

1.6 A

30 VDC

3.2 A

100 A

110 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 1.85A 30V 100A Imax

RUEF185-1
Littelfuse
1: 2,95 kr.
202In Stock
500Expected 06/04/2026

Mfr. Part No.
RUEF185-1

Mouser Part No
650-RUEF185-1

Littelfuse

Resettable Fuses - PPTC 1.85A 30V 100A Imax

Learn More

Datasheet

202In Stock

500Expected 06/04/2026

2,95 kr.

2,72 kr.

2,25 kr.

2,08 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

1.85 A

30 VDC

3.7 A

100 A

90 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 1.85A 30V 40A Imax

RUEF185S
Littelfuse
1: 2,76 kr.
410In Stock

Mfr. Part No.
RUEF185S

Mouser Part No
650-RUEF185S

Littelfuse

Resettable Fuses - PPTC 1.85A 30V 40A Imax

Learn More

Datasheet

410In Stock

2,76 kr.

2,54 kr.

2,11 kr.

1,95 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

1.85 A

30 VDC

3.7 A

100 A

90 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 2.5A 30V 100A Imax

RUEF250
Littelfuse
1: 2,89 kr.
1.024In Stock
6.000On Order

Mfr. Part No.
RUEF250

Mouser Part No
650-RUEF250

Littelfuse

Resettable Fuses - PPTC 2.5A 30V 100A Imax

Learn More

Datasheet

1.024In Stock

6.000On Order

2,89 kr.

2,61 kr.

2,17 kr.

1,90 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

2.5 A

30 VDC

5 A

100 A

70 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 2.5A 30V 100A Imax

RUEF250-2
Littelfuse
1: 3,40 kr.
527In Stock
9.000Expected 19/02/2026

Mfr. Part No.
RUEF250-2

Mouser Part No
650-RUEF250-2

Littelfuse

Resettable Fuses - PPTC 2.5A 30V 100A Imax

Learn More

Datasheet

527In Stock

9.000Expected 19/02/2026

Cut Tape

3,40 kr.

3,05 kr.

2,57 kr.

2,29 kr.

Reel

1,43 kr.

View

Min.: 1
Mult.: 1

Reel: 3.000

RUEF

PCB Mount

Radial

2.5 A

30 VDC

5 A

100 A

70 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 30V 2.5A-HD 100A RUEF

RUEF250-AP
Littelfuse
1: 3,40 kr.
3.990In Stock

Mfr. Part No.
RUEF250-AP

Mouser Part No
650-RUEF250-AP

Littelfuse

Resettable Fuses - PPTC 30V 2.5A-HD 100A RUEF

Learn More

Datasheet

3.990In Stock

Cut Tape

3,40 kr.

3,10 kr.

2,57 kr.

2,36 kr.

View

Reel

1,53 kr.

Min.: 1
Mult.: 1

Reel: 2.000

RUEF

PCB Mount

Radial

2.5 A

30 VDC

5 A

100 A

70 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 2.5A 30V 100A Imax

RUEF250S
Littelfuse
1: 2,89 kr.
276In Stock

Mfr. Part No.
RUEF250S

Mouser Part No
650-RUEF250S

Littelfuse

Resettable Fuses - PPTC 2.5A 30V 100A Imax

Learn More

Datasheet

276In Stock

2,89 kr.

2,61 kr.

2,17 kr.

2,00 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

2.5 A

30 VDC

5 A

100 A

70 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED

RUEF250U
Littelfuse
1: 2,89 kr.
2.055In Stock

Mfr. Part No.
RUEF250U

Mouser Part No
650-RUEF250U

Littelfuse

Resettable Fuses - PPTC 2.5A 30V 100A Imax UNCOATED

Learn More

Datasheet

2.055In Stock

2,89 kr.

2,61 kr.

2,17 kr.

2,00 kr.

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

2.5 A

30 VDC

4.9 A

100 A

80 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated

RUEF250U-2
Littelfuse
1: 3,40 kr.
4.482In Stock

Mfr. Part No.
RUEF250U-2

Mouser Part No
650-RUEF250U-2

Littelfuse

Resettable Fuses - PPTC 2.5A 30V 40A Imax Uncoated

Learn More

Datasheet

4.482In Stock

Cut Tape

3,40 kr.

3,08 kr.

2,57 kr.

2,36 kr.

Reel

1,43 kr.

View

Min.: 1
Mult.: 1

Reel: 3.000

RUEF

PCB Mount

Radial

2.5 A

30 VDC

5 A

100 A

70 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Radial-Leaded PolySwitch Resettable PPTCs

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50 mA
80 mA
100 mA
120 mA
145 mA
150 mA
160 mA
170 mA
180 mA
200 mA
250 mA
300 mA
400 mA
500 mA
650 mA
700 mA
750 mA
900 mA
1 A
1.1 A

100 mA
160 mA
200 mA
240 mA
290 mA
300 mA
320 mA
340 mA
400 mA
500 mA
600 mA
650 mA
800 mA
900 mA
920 mA
1 A
1.3 A
1.4 A
1.5 A
1.8 A

6.4 mOhms
6.7 mOhms
8.6 mOhms
8.9 mOhms
9 mOhms
9.1 mOhms
9.2 mOhms
10 mOhms
10.2 mOhms
10.6 mOhms
11 mOhms
13 mOhms
13.1 mOhms
13.5 mOhms
14 mOhms
15 mOhms
16 mOhms
17 mOhms
17.5 mOhms
18.1 mOhms