Resettable Fuses - PPTC

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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 Radial Lead .4A 72V 40A Imax

RXEF040S
Littelfuse
1: ¥73.1
892In Stock

Mfr. Part #
RXEF040S

Mouser Part #
650-RXEF040S

Littelfuse

Resettable Fuses - PPTC Radial Lead .4A 72V 40A Imax

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Datasheet

Product Comments

892In Stock

¥73.1

¥66.4

¥55.1

¥50.8

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

400 mA

72 VDC

800 mA

40 A

1.29 Ohms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC .5A 72V 40A Imax

RXEF050-1
Littelfuse
1: ¥73.1
1,790In Stock

Mfr. Part #
RXEF050-1

Mouser Part #
650-RXEF050-1

Littelfuse

Resettable Fuses - PPTC .5A 72V 40A Imax

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Datasheet

Product Comments

1,790In Stock

¥73.1

¥67.4

¥56

¥51.7

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

500 mA

72 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax

RXEF050-2
Littelfuse
1: ¥86.4
4,887In Stock
6,000Expected 8/20/2026

Mfr. Part #
RXEF050-2

Mouser Part #
650-RXEF050-2

Littelfuse

Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax

Learn More

Datasheet

Product Comments

4,887In Stock

6,000Expected 8/20/2026

Cut Tape

¥86.4

¥76.1

¥65.3

¥57.8

Reel

¥34.5

View

Min.: 1
Mult.: 1

: 3,000

RXEF

PCB Mount

Radial

500 mA

72 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V .5A-HD 40A MAX

RXEF050-AP
Littelfuse
1: ¥86.4
2,003In Stock

Mfr. Part #
RXEF050-AP

Mouser Part #
650-RXEF050-AP

Littelfuse

Resettable Fuses - PPTC 72V .5A-HD 40A MAX

Learn More

Datasheet

Product Comments

2,003In Stock

Cut Tape

¥86.4

¥78.7

¥65.3

¥59.8

View

Reel

¥36.7

Min.: 1
Mult.: 1

: 2,000

RXEF

PCB Mount

Radial

500 mA

72 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax

RXEF050S
Littelfuse
1: ¥68.1
666In Stock
500Expected 9/15/2026

Mfr. Part #
RXEF050S

Mouser Part #
650-RXEF050S

Littelfuse

Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax

Learn More

Datasheet

Product Comments

666In Stock

500Expected 9/15/2026

¥68.1

¥62.5

¥51.8

¥47.8

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

500 mA

72 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC .5A 72V 40A Imax

RXEF050S-AP
Littelfuse
1: ¥86.4
3,420In Stock

Mfr. Part #
RXEF050S-AP

Mouser Part #
650-RXEF050S-AP

Littelfuse

Resettable Fuses - PPTC .5A 72V 40A Imax

Learn More

Datasheet

Product Comments

3,420In Stock

Cut Tape

¥86.4

¥78.7

¥65.3

¥59.8

View

Reel

¥36.7

Min.: 1
Mult.: 1

: 2,000

RXEF

PCB Mount

Radial

500 mA

72 VDC

1 A

40 A

1.17 Ohms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead .65A 72V 40A Imax

RXEF065-2
Littelfuse
1: ¥94.7
4,576In Stock

Mfr. Part #
RXEF065-2

Mouser Part #
650-RXEF065-2

Littelfuse

Resettable Fuses - PPTC Radial Lead .65A 72V 40A Imax

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Datasheet

Product Comments

4,576In Stock

Cut Tape

¥94.7

¥87.2

¥72.4

¥66.8

Reel

¥38.4

View

Min.: 1
Mult.: 1

: 3,000

RXEF

PCB Mount

Radial

650 mA

72 VDC

1.3 A

40 A

720 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead .75A 72V 40A Imax

RXEF075-2
Littelfuse
1: ¥96.3
3,533In Stock

Mfr. Part #
RXEF075-2

Mouser Part #
650-RXEF075-2

Littelfuse

Resettable Fuses - PPTC Radial Lead .75A 72V 40A Imax

Learn More

Datasheet

Product Comments

3,533In Stock

Cut Tape

¥96.3

¥88.4

¥73.3

¥67.6

View

Reel

¥41.7

Min.: 1
Mult.: 1

: 3,000

RXEF

PCB Mount

Radial

750 mA

72 VDC

1.5 A

40 A

600 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 750MA 40A RXEF

RXEF075-AP
Littelfuse
1: ¥96.3
2,000In Stock

Mfr. Part #
RXEF075-AP

Mouser Part #
650-RXEF075-AP

Littelfuse

Resettable Fuses - PPTC 72V 750MA 40A RXEF

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Datasheet

Product Comments

2,000In Stock

Cut Tape

¥96.3

¥88.4

¥73.3

¥67.4

Reel

¥49.2

View

Min.: 1
Mult.: 1

: 2,000

RXEF

PCB Mount

Radial

750 mA

72 VDC

1.5 A

40 A

600 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead .75A 72V 40A Imax

RXEF075S
Littelfuse
1: ¥78.1
215In Stock
1,000Expected 8/18/2026

Mfr. Part #
RXEF075S

Mouser Part #
650-RXEF075S

Littelfuse

Resettable Fuses - PPTC Radial Lead .75A 72V 40A Imax

Learn More

Datasheet

Product Comments

215In Stock

1,000Expected 8/18/2026

¥78.1

¥70.8

¥58.8

¥48.8

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

750 mA

72 VDC

1.5 A

40 A

600 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax

RXEF090-2
Littelfuse
1: ¥101.3
2,950In Stock
6,000Expected 9/21/2026

Mfr. Part #
RXEF090-2

Mouser Part #
650-RXEF090-2

Littelfuse

Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax

Learn More

Datasheet

Product Comments

2,950In Stock

6,000Expected 9/21/2026

Cut Tape

¥101.3

¥92.2

¥76.6

¥70.6

Reel

¥40.5

View

Min.: 1
Mult.: 1

: 3,000

RXEF

PCB Mount

Radial

900 mA

72 VDC

1.8 A

40 A

470 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC

RXEF090-AP
Littelfuse
1: ¥101.3
1,895In Stock

Mfr. Part #
RXEF090-AP

Mouser Part #
650-RXEF090-AP

Littelfuse

Resettable Fuses - PPTC

Learn More

Datasheet

Product Comments

1,895In Stock

Cut Tape

¥101.3

¥87.2

¥76.6

¥64.9

View

Reel

¥43.7

Min.: 1
Mult.: 1

: 2,000

RXEF

PCB Mount

Radial

900 mA

72 VDC

1.8 A

40 A

470 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax

RXEF090S
Littelfuse
1: ¥81.4
41In Stock

Mfr. Part #
RXEF090S

Mouser Part #
650-RXEF090S

Littelfuse

Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax

Learn More

Datasheet

Product Comments

41In Stock

¥81.4

¥74.2

¥61.6

¥56.8

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

900 mA

72 VDC

1.8 A

40 A

470 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 380 mOhms 40 A 72 VDC - 40 C+ 85 C

RXEF110-AP
Littelfuse
1: ¥106.3
1,432In Stock

Mfr. Part #
RXEF110-AP

Mouser Part #
650-RXEF110-AP

Littelfuse

Resettable Fuses - PPTC 380 mOhms 40 A 72 VDC - 40 C+ 85 C

Learn More

Datasheet

Product Comments

1,432In Stock

Cut Tape

¥106.3

¥98.2

¥81.6

¥75.2

Reel

¥49.2

View

Min.: 1
Mult.: 1

: 1,000

RXEF

PCB Mount

Radial

1.1 A

72 VDC

2.2 A

40 A

380 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead 1.1A 72V 40A Imax

RXEF110K
Littelfuse
1: ¥86.4
2,474In Stock

Mfr. Part #
RXEF110K

Mouser Part #
650-RXEF110K

Littelfuse

Resettable Fuses - PPTC Radial Lead 1.1A 72V 40A Imax

Learn More

Datasheet

Product Comments

2,474In Stock

¥86.4

¥79.4

¥65.9

¥60.8

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

1.1 A

72 VDC

2.2 A

40 A

380 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC 72V 40A 0.25Ohms

RXEF110K-AP
Littelfuse
1: ¥108
1,585In Stock

Mfr. Part #
RXEF110K-AP

Mouser Part #
650-RXEF110K-AP

Littelfuse

Resettable Fuses - PPTC 72V 40A 0.25Ohms

Learn More

Datasheet

1,585In Stock

Cut Tape

¥108

¥98.8

¥82.1

¥75.7

Reel

¥49.5

View

Min.: 1
Mult.: 1

: 1,000

RXEF

PCB Mount

Radial

1.1 A

72 VDC

2.2 A

40 A

250 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead 1.35A 72V 40A Imax

RXEF135-2
Littelfuse
1: ¥109.6
1,479In Stock
1,500Expected 11/30/2026

Mfr. Part #
RXEF135-2

Mouser Part #
650-RXEF135-2

Littelfuse

Resettable Fuses - PPTC Radial Lead 1.35A 72V 40A Imax

Learn More

Datasheet

Product Comments

1,479In Stock

1,500Expected 11/30/2026

Cut Tape

¥109.6

¥101

¥83.7

¥77.4

Reel

¥48.2

View

Min.: 1
Mult.: 1

: 1,500

RXEF

PCB Mount

Radial

1.35 A

72 VDC

2.7 A

40 A

300 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 300 mOhms 40 A 72 VDC - 40 C+ 85 C

RXEF135K-2
Littelfuse
1: ¥106.3
1,408In Stock
1,500Expected 8/20/2026

Mfr. Part #
RXEF135K-2

Mouser Part #
650-RXEF135K-2

Littelfuse

Resettable Fuses - PPTC 300 mOhms 40 A 72 VDC - 40 C+ 85 C

Learn More

Datasheet

Product Comments

1,408In Stock

1,500Expected 8/20/2026

Cut Tape

¥106.3

¥97.7

¥81.6

¥72.3

Reel

¥46.8

View

Min.: 1
Mult.: 1

: 1,500

RXEF

PCB Mount

Radial

1.35 A

72 VDC

2.7 A

40 A

300 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 40A 72V 2Pin Ammo Pk PolySwitch Reset Dev

RXEF135K-AP
Littelfuse
1: ¥93
496In Stock

Mfr. Part #
RXEF135K-AP

Mouser Part #
650-RXEF135K-AP

Littelfuse

Resettable Fuses - PPTC 40A 72V 2Pin Ammo Pk PolySwitch Reset Dev

Learn More

Datasheet

Product Comments

496In Stock

Cut Tape

¥93

¥85.7

¥85.4

¥77.7

View

Reel

¥50.2

Min.: 1
Mult.: 1

: 1,000

RXEF

PCB Mount

Radial

1.35 A

72 VDC

2.7 A

40 A

300 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 72V 1.6A-HD 40A RXEF

RXEF160-AP
Littelfuse
1: ¥117.9
1,549In Stock

Mfr. Part #
RXEF160-AP

Mouser Part #
650-RXEF160-AP

Littelfuse

Resettable Fuses - PPTC 72V 1.6A-HD 40A RXEF

Learn More

Datasheet

Product Comments

1,549In Stock

Cut Tape

¥117.9

¥115.6

¥114.3

¥106.8

Reel

¥62.1

¥58.3

Min.: 1
Mult.: 1

: 1,000

RXEF

PCB Mount

Radial

1.6 A

72 VDC

3.2 A

40 A

220 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Radial Lead 1.6A 72V 40A Imax

RXEF160K
Littelfuse
1: ¥93
483In Stock

Mfr. Part #
RXEF160K

Mouser Part #
650-RXEF160K

Littelfuse

Resettable Fuses - PPTC Radial Lead 1.6A 72V 40A Imax

Learn More

Datasheet

Product Comments

483In Stock

¥93

¥85.4

¥70.9

¥65.4

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

1.6 A

72 VDC

3.2 A

40 A

220 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC Radial Lead 1.6A 72V 40A Imax

RXEF160K-2
Littelfuse
1: ¥121.3
2,380In Stock
3,000Expected 10/15/2026

Mfr. Part #
RXEF160K-2

Mouser Part #
650-RXEF160K-2

Littelfuse

Resettable Fuses - PPTC Radial Lead 1.6A 72V 40A Imax

Learn More

Datasheet

Product Comments

2,380In Stock

3,000Expected 10/15/2026

Cut Tape

¥121.3

¥111

¥92

¥85

Reel

¥53

View

Min.: 1
Mult.: 1

: 1,500

RXEF

PCB Mount

Radial

1.6 A

72 VDC

3.2 A

40 A

220 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC Polyswitch 3.7A 1 inch lead

RXEF185-1
Littelfuse
1: ¥98
200In Stock

Mfr. Part #
RXEF185-1

Mouser Part #
650-RXEF185-1

Littelfuse

Resettable Fuses - PPTC Polyswitch 3.7A 1 inch lead

Learn More

Datasheet

Product Comments

200In Stock

¥98

¥90.5

¥75.2

¥69.4

View

Min.: 1
Mult.: 1

RXEF

PCB Mount

Radial

1.85 A

72 VDC

3.7 A

40 A

190 mOhms

- 40 C

+ 85 C

5.8 mm

Bulk

Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax

RXEF185-2
Littelfuse
1: ¥131.2
1,328In Stock
1,500Expected 9/23/2026

Mfr. Part #
RXEF185-2

Mouser Part #
650-RXEF185-2

Littelfuse

Resettable Fuses - PPTC Radial Lead 1.85A 72V 40A Imax

Learn More

Datasheet

Product Comments

1,328In Stock

1,500Expected 9/23/2026

Cut Tape

¥131.2

¥120.1

¥99.7

¥92

Reel

¥57.3

View

Min.: 1
Mult.: 1

: 1,500

RXEF

PCB Mount

Radial

1.85 A

72 VDC

3.7 A

40 A

190 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

Resettable Fuses - PPTC 1.85A 72V 40A Imax

RXEF185-AP
Littelfuse
1: ¥111.3
500In Stock

Mfr. Part #
RXEF185-AP

Mouser Part #
650-RXEF185-AP

Littelfuse

Resettable Fuses - PPTC 1.85A 72V 40A Imax

Learn More

Datasheet

Product Comments

500In Stock

Cut Tape

¥111.3

¥101.8

¥84.5

¥78.1

¥77.7

Reel

¥59.5

Min.: 1
Mult.: 1

: 1,000

RXEF

PCB Mount

Radial

1.85 A

72 VDC

3.7 A

40 A

190 mOhms

- 40 C

+ 85 C

5.8 mm

Reel, Cut Tape

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
1 A
1.3 A
1.4 A
1.5 A
1.8 A
1.9 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