Resettable Fuses - PPTC – Mouser Canada

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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 3A 30V 100A Imax

RUEF300-2
Littelfuse
1: $0.868
4,696In Stock

Mfr. Part #
RUEF300-2

Mouser Part #
650-RUEF300-2

Littelfuse

Resettable Fuses - PPTC 3A 30V 100A Imax

Learn More

Datasheet

4,696In Stock

Cut Tape

$0.868

$0.797

$0.662

$0.611

Reel

$0.377

View

Min.: 1
Mult.: 1

Reel: 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

Resettable Fuses - PPTC 3A 30V 100A Imax

RUEF300-AP
Littelfuse
1: $0.868
2,313In Stock

Mfr. Part #
RUEF300-AP

Mouser Part #
650-RUEF300-AP

Littelfuse

Resettable Fuses - PPTC 3A 30V 100A Imax

Learn More

Datasheet

2,313In Stock

$0.868

$0.797

$0.662

$0.611

Reel

$0.419

View

Min.: 1
Mult.: 1

Reel: 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: $0.868
3,713In Stock

Mfr. Part #
RUEF300K-2

Mouser Part #
650-RUEF300K-2

Littelfuse

Resettable Fuses - PPTC 3A 30V 100A Imax

Learn More

Datasheet

3,713In Stock

Cut Tape

$0.868

$0.797

$0.662

$0.611

Reel

$0.377

View

Min.: 1
Mult.: 1

Reel: 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

Resettable Fuses - PPTC 4A 30V 40A Imax

RUEF400-1
Littelfuse
1: $0.915
1,343In Stock

Mfr. Part #
RUEF400-1

Mouser Part #
650-RUEF400-1

Littelfuse

Resettable Fuses - PPTC 4A 30V 40A Imax

Learn More

Datasheet

1,343In Stock

$0.915

$0.835

$0.694

$0.64

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

4 A

30 VDC

8 A

40 A

50 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 4A 30V 100A Imax

RUEF400-2
Littelfuse
1: $1.01
3,321In Stock

Mfr. Part #
RUEF400-2

Mouser Part #
650-RUEF400-2

Littelfuse

Resettable Fuses - PPTC 4A 30V 100A Imax

Learn More

Datasheet

3,321In Stock

Cut Tape

$1.01

$0.928

$0.772

$0.705

Reel

$0.465

View

Min.: 1
Mult.: 1

Reel: 1,500

RUEF

PCB Mount

Radial

4 A

30 VDC

8 A

100 A

50 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 30V 4A-HD 100A RUEF

RUEF400-AP
Littelfuse
1: $1.01
810In Stock
1,000Expected 2026-03-23

Mfr. Part #
RUEF400-AP

Mouser Part #
650-RUEF400-AP

Littelfuse

Resettable Fuses - PPTC 30V 4A-HD 100A RUEF

Learn More

Datasheet

810In Stock

1,000Expected 2026-03-23

Cut Tape

$1.01

$0.928

$0.772

$0.711

Reel

$0.488

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

4 A

30 VDC

8 A

100 A

50 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 4A 30V 40A Imax

RUEF400K
Littelfuse
1: $0.868
668In Stock

Mfr. Part #
RUEF400K

Mouser Part #
650-RUEF400K

Littelfuse

Resettable Fuses - PPTC 4A 30V 40A Imax

Learn More

Datasheet

668In Stock

$0.868

$0.795

$0.66

$0.609

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

4 A

30 VDC

8 A

100 A

50 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 4A 30V 100A Imax

RUEF400K-2
Littelfuse
1: $1.01
1,440In Stock
1,500Expected 2026-05-11

Mfr. Part #
RUEF400K-2

Mouser Part #
650-RUEF400K-2

Littelfuse

Resettable Fuses - PPTC 4A 30V 100A Imax

Learn More

Datasheet

1,440In Stock

1,500Expected 2026-05-11

Cut Tape

$1.01

$0.899

$0.772

$0.667

Reel

$0.476

View

Min.: 1
Mult.: 1

Reel: 1,500

RUEF

PCB Mount

Radial

4 A

30 VDC

8 A

100 A

50 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 5A 30V 40A Imax

RUEF500-1
Littelfuse
1: $1.09
1,469In Stock

Mfr. Part #
RUEF500-1

Mouser Part #
650-RUEF500-1

Littelfuse

Resettable Fuses - PPTC 5A 30V 40A Imax

Learn More

Datasheet

1,469In Stock

$1.09

$1.00

$0.831

$0.766

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

5 A

30 VDC

10 A

100 A

50 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 5A 30V 100A Imax

RUEF500-2
Littelfuse
1: $1.21
2,481In Stock

Mfr. Part #
RUEF500-2

Mouser Part #
650-RUEF500-2

Littelfuse

Resettable Fuses - PPTC 5A 30V 100A Imax

Learn More

Datasheet

2,481In Stock

Cut Tape

$1.21

$1.10

$0.885

$0.839

Reel

$0.556

View

Min.: 1
Mult.: 1

Reel: 1,500

RUEF

PCB Mount

Radial

5 A

30 VDC

10 A

100 A

50 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 5A 30V 40A Imax

RUEF500K
Littelfuse
1: $1.05
420In Stock

Mfr. Part #
RUEF500K

Mouser Part #
650-RUEF500K

Littelfuse

Resettable Fuses - PPTC 5A 30V 40A Imax

Learn More

Datasheet

420In Stock

$1.05

$0.959

$0.797

$0.736

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

5 A

30 VDC

10 A

100 A

50 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 5A 30V 100A Imax

RUEF500K-2
Littelfuse
1: $1.21
3,600In Stock

Mfr. Part #
RUEF500K-2

Mouser Part #
650-RUEF500K-2

Littelfuse

Resettable Fuses - PPTC 5A 30V 100A Imax

Learn More

Datasheet

3,600In Stock

Cut Tape

$1.21

$1.11

$0.915

$0.851

View

Reel

$0.57

Min.: 1
Mult.: 1

Reel: 1,500

RUEF

PCB Mount

Radial

5 A

30 VDC

10 A

100 A

50 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 6A 30V 40A Imax

RUEF600-1
Littelfuse
1: $1.19
500In Stock

Mfr. Part #
RUEF600-1

Mouser Part #
650-RUEF600-1

Littelfuse

Resettable Fuses - PPTC 6A 30V 40A Imax

Learn More

Datasheet

500In Stock

$1.19

$1.10

$0.913

$0.843

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

6 A

30 V

12 A

40 A

40 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 6A 30V 40A Imax

RUEF600-2
Littelfuse
1: $1.36
430In Stock

Mfr. Part #
RUEF600-2

Mouser Part #
650-RUEF600-2

Littelfuse

Resettable Fuses - PPTC 6A 30V 40A Imax

Learn More

Datasheet

430In Stock

Cut Tape

$1.36

$1.25

$1.04

$0.956

Reel

$0.657

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

6 A

30 VDC

12 A

40 A

40 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 6A 30V 100A Imax

RUEF600-AP
Littelfuse
1: $1.30
776In Stock

Mfr. Part #
RUEF600-AP

Mouser Part #
650-RUEF600-AP

Littelfuse

Resettable Fuses - PPTC 6A 30V 100A Imax

Learn More

Datasheet

776In Stock

Cut Tape

$1.30

$1.19

$0.989

$0.913

Reel

$0.696

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

6 A

30 VDC

12 A

100 A

40 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 6A 30V 100A Imax

RUEF600K
Littelfuse
1: $1.32
476In Stock

Mfr. Part #
RUEF600K

Mouser Part #
650-RUEF600K

Littelfuse

Resettable Fuses - PPTC 6A 30V 100A Imax

Learn More

Datasheet

476In Stock

$1.32

$1.14

$1.00

$0.911

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

6 A

30 VDC

12 A

100 A

40 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 7A 30V 100A Imax

RUEF700
Littelfuse
1: $1.22
3,236In Stock
5,000Expected 2026-03-24

Mfr. Part #
RUEF700

Mouser Part #
650-RUEF700

Littelfuse

Resettable Fuses - PPTC 7A 30V 100A Imax

Learn More

Datasheet

3,236In Stock

5,000Expected 2026-03-24

$1.22

$1.12

$0.826

$0.794

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

7 A

30 VDC

14 A

100 A

30 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 7A 30V 100A Imax

RUEF700-2
Littelfuse
1: $1.44
2,426In Stock

Mfr. Part #
RUEF700-2

Mouser Part #
650-RUEF700-2

Littelfuse

Resettable Fuses - PPTC 7A 30V 100A Imax

Learn More

Datasheet

2,426In Stock

Cut Tape

$1.44

$1.32

$1.10

$1.01

Reel

$0.696

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

7 A

30 VDC

14 A

100 A

30 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 7A 30V 100A Imax

RUEF700K
Littelfuse
1: $1.22
329In Stock

Mfr. Part #
RUEF700K

Mouser Part #
650-RUEF700K

Littelfuse

Resettable Fuses - PPTC 7A 30V 100A Imax

Learn More

Datasheet

329In Stock

$1.22

$1.13

$0.935

$0.918

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

7 A

30 VDC

14 A

100 A

30 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 8A 30V 100A Imax

RUEF800
Littelfuse
1: $1.33
2,274In Stock
8,500Expected 2026-02-19

Mfr. Part #
RUEF800

Mouser Part #
650-RUEF800

Littelfuse

Resettable Fuses - PPTC 8A 30V 100A Imax

Learn More

Datasheet

2,274In Stock

8,500Expected 2026-02-19

$1.33

$1.22

$0.921

$0.876

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

8 A

30 VDC

16 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 8A 30V 40A Imax

RUEF800-2
Littelfuse
1: $2.11
1,730In Stock

Mfr. Part #
RUEF800-2

Mouser Part #
650-RUEF800-2

Littelfuse

Resettable Fuses - PPTC 8A 30V 40A Imax

Learn More

Datasheet

1,730In Stock

Cut Tape

$2.11

$1.58

$1.20

$1.17

Reel

$0.876

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

8 A

30 VDC

16 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 8A 30V 40A Imax

RUEF800K
Littelfuse
1: $1.35
48In Stock
250Expected 2026-02-19

Mfr. Part #
RUEF800K

Mouser Part #
650-RUEF800K

Littelfuse

Resettable Fuses - PPTC 8A 30V 40A Imax

Learn More

Datasheet

48In Stock

250Expected 2026-02-19

$1.35

$1.24

$0.987

$0.939

View

Min.: 1
Mult.: 1

RUEF

PCB Mount

Radial

8 A

30 VDC

16 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 mm

Bulk

Resettable Fuses - PPTC 8A 30V 40A Imax

RUEF800K-2
Littelfuse
1: $1.55
1,283In Stock

Mfr. Part #
RUEF800K-2

Mouser Part #
650-RUEF800K-2

Littelfuse

Resettable Fuses - PPTC 8A 30V 40A Imax

Learn More

Datasheet

1,283In Stock

Cut Tape

$1.55

$1.43

$1.17

$1.10

Reel

$0.828

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

8 A

30 VDC

16 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 9A 30V 100A Imax

RUEF900-2
Littelfuse
1: $1.88
2,003In Stock

Mfr. Part #
RUEF900-2

Mouser Part #
650-RUEF900-2

Littelfuse

Resettable Fuses - PPTC 9A 30V 100A Imax

Learn More

Datasheet

2,003In Stock

Cut Tape

$1.88

$1.72

$1.43

$1.32

Reel

$0.905

View

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

9 A

30 VDC

18 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 mm

Reel, Cut Tape

Resettable Fuses - PPTC 9A 30V 40A Imax

RUEF900K-2
Littelfuse
1: $1.88
579In Stock
1,000Expected 2026-05-18

Mfr. Part #
RUEF900K-2

Mouser Part #
650-RUEF900K-2

Littelfuse

Resettable Fuses - PPTC 9A 30V 40A Imax

Learn More

Datasheet

579In Stock

1,000Expected 2026-05-18

Cut Tape

$1.88

$1.74

$1.43

$1.32

View

Reel

$0.925

Min.: 1
Mult.: 1

Reel: 1,000

RUEF

PCB Mount

Radial

9 A

30 VDC

18 A

100 A

20 mOhms

- 40 C

+ 85 C

10.9 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