Resettable Fuses - PPTC – Mouser Singapore

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

LR4 15/20V PolySwitch Battery Strap PPTCs

Littelfuse LR4 15/20V PolySwitch Battery Strap Polymeric Positive Temperature Coefficient Resettable Fuses (PPTCs) serve changing battery technology and help protect battery applications. Littelfuse LR4 offers a 3.8A to 13A hold current and 100A maximum current along with 15 or 20V maximum voltage. These Polyswitch devices provide fast time-to-trip and serve a variety of devices, including smartphones, tablet PCs, mobile radios, digital cameras, and power tool charge lines.

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

Results: 31

Applied Filters:

Mounting Style

Termination Style

Hold Current

Maximum Voltage

Trip Current

Resistance

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 LR4-600XF

LR4-600XF
Littelfuse
1: $1.70
2,920In Stock

Mfr. Part No.
LR4-600XF

Mouser Part No
650-LR4-600XF

Littelfuse

Resettable Fuses - PPTC LR4-600XF

Learn More

Datasheet

2,920In Stock

$1.70

$1.57

$1.26

$1.20

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

6 A

20 VDC

11.7 A

100 A

14 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC LR4-1300SSF

LR4-1300SSF
Littelfuse
1: $2.93
5,590In Stock

Mfr. Part No.
LR4-1300SSF

Mouser Part No
650-LR4-1300SSF

Littelfuse

Resettable Fuses - PPTC LR4-1300SSF

Learn More

Datasheet

5,590In Stock

$2.93

$2.46

$1.96

$1.71

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

13 A

20 VDC

21.2 A

100 A

6.5 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC LR4-380F

LR4-380F
Littelfuse
1: $1.21
4,355In Stock

Mfr. Part No.
LR4-380F

Mouser Part No
650-LR4-380F

Littelfuse

Resettable Fuses - PPTC LR4-380F

Learn More

Datasheet

4,355In Stock

$1.21

$1.11

$0.884

$0.845

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

3.8 A

15 VDC

8.3 A

100 A

26 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 4.5A 20V 100A Imax

LR4-450F
Littelfuse
1: $1.29
5,976In Stock

Mfr. Part No.
LR4-450F

Mouser Part No
650-LR4-450F

Littelfuse

Resettable Fuses - PPTC 4.5A 20V 100A Imax

Learn More

Datasheet

5,976In Stock

$1.29

$1.18

$0.981

$0.905

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

4.5 A

20 VDC

8.9 A

100 A

20 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 6A 20V 100A Imax

LR4-600F
Littelfuse
1: $1.58
11,569In Stock

Mfr. Part No.
LR4-600F

Mouser Part No
650-LR4-600F

Littelfuse

Resettable Fuses - PPTC 6A 20V 100A Imax

Learn More

Datasheet

11,569In Stock

$1.58

$1.34

$1.01

$0.915

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

6 A

20 VDC

11.7 A

100 A

14 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 9A 20V 100A Imax

LR4-900F
Littelfuse
1: $1.99
9,673In Stock

Mfr. Part No.
LR4-900F

Mouser Part No
650-LR4-900F

Littelfuse

Resettable Fuses - PPTC 9A 20V 100A Imax

Learn More

Datasheet

9,673In Stock

$1.99

$1.83

$1.52

$1.40

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

9 A

20 VDC

16.7 A

100 A

10 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC LR4-190F

LR4-190F
Littelfuse
1: $0.862
2,630In Stock

Mfr. Part No.
LR4-190F

Mouser Part No
650-LR4-190F

Littelfuse

Resettable Fuses - PPTC LR4-190F

Learn More

Datasheet

2,630In Stock

$0.862

$0.792

$0.659

$0.607

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

1.9 A

15 VDC

3.9 A

100 A

72 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 2.6A 15V 100A Imax

LR4-260F
Littelfuse
1: $1.20
597In Stock
28,000Expected 3/4/2026

Mfr. Part No.
LR4-260F

Mouser Part No
650-LR4-260F

Littelfuse

Resettable Fuses - PPTC 2.6A 15V 100A Imax

Learn More

Datasheet

597In Stock

28,000Expected 3/4/2026

$1.20

$1.00

$0.93

$0.778

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

2.6 A

15 VDC

5.8 A

100 A

42 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 2.6A 15V 100A Imax

LR4-260SF
Littelfuse
1: $1.06
1,965Expected 20/3/2026

Mfr. Part No.
LR4-260SF

Mouser Part No
650-LR4-260SF

Littelfuse

Resettable Fuses - PPTC 2.6A 15V 100A Imax

Learn More

Datasheet

1,965Expected 20/3/2026

$1.06

$0.972

$0.806

$0.744

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

2.6 A

15 VDC

5.8 A

100 A

42 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC LR4-380XF

LR4-380XF
Littelfuse
1: $1.21
503In Stock

Mfr. Part No.
LR4-380XF

Mouser Part No
650-LR4-380XF

Littelfuse

Resettable Fuses - PPTC LR4-380XF

Learn More

Datasheet

503In Stock

$1.21

$1.11

$0.923

$0.852

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

3.8 A

15 VDC

8.3 A

100 A

26 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 7.3A 20V 100A Imax

LR4-730F
Littelfuse
1: $2.03
972In Stock
6,000Expected 21/4/2026

Mfr. Part No.
LR4-730F

Mouser Part No
650-LR4-730F

Littelfuse

Resettable Fuses - PPTC 7.3A 20V 100A Imax

Learn More

Datasheet

972In Stock

6,000Expected 21/4/2026

$2.03

$1.70

$1.50

$1.43

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

7.3 A

20 VDC

14.1 A

100 A

12 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 5.5A 20V 100A Imax

LR4-550F
Littelfuse
1: $1.40
2,828Expected 27/3/2026

Mfr. Part No.
LR4-550F

Mouser Part No
650-LR4-550F

Littelfuse

Resettable Fuses - PPTC 5.5A 20V 100A Imax

Learn More

Datasheet

2,828Expected 27/3/2026

$1.40

$1.28

$1.07

$0.984

View

Min.: 1
Mult.: 1

LR4

Strap Mount

SMD/SMT

5.5 A

20 VDC

10.5 A

100 A

16 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 1.7A 15V 100A Imax

LR4-170UF
Littelfuse
10,000: $0.435
Non-Stocked

Mfr. Part No.
LR4-170UF

Mouser Part No
650-LR4-170UF

Littelfuse

Resettable Fuses - PPTC 1.7A 15V 100A Imax

Learn More

Datasheet

Non-Stocked

$0.435

Min.: 10,000
Mult.: 2,000

LR4

Strap Mount

Axial

1.7 A

15 V

3.4 A

100 A

78 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 15V 1.9A Ih 0.102ohm

LR4-190LF
Littelfuse
10,000: $0.435
Non-Stocked

Mfr. Part No.
LR4-190LF

Mouser Part No
650-LR4-190LF

Littelfuse

Resettable Fuses - PPTC 15V 1.9A Ih 0.102ohm

Learn More

Datasheet

Non-Stocked

$0.435

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

1.9 A

15 V

3.9 A

100 A

102 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 1.9A 15V 100A Imax

LR4-190SF
Littelfuse
10,000: $0.435
Non-Stocked

Mfr. Part No.
LR4-190SF

Mouser Part No
650-LR4-190SF

Littelfuse

Resettable Fuses - PPTC 1.9A 15V 100A Imax

Learn More

Datasheet

Non-Stocked

$0.435

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

1.9 A

15 V

3.9 A

100 A

72 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 1.9A STRAP Polyswitch PTC RESET

LR4-190SLF
Littelfuse
10,000: $0.435
Non-Stocked

Mfr. Part No.
LR4-190SLF

Mouser Part No
650-LR4-190SLF

Littelfuse

Resettable Fuses - PPTC 1.9A STRAP Polyswitch PTC RESET

Learn More

Datasheet

Non-Stocked

$0.435

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

1.9 A

15 V

3.9 A

100 A

72 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 1.9A STRAP Polyswitch PTC RESET

LR4-190XF
Littelfuse
10,000: $0.435
Non-Stocked

Mfr. Part No.
LR4-190XF

Mouser Part No
650-LR4-190XF

Littelfuse

Resettable Fuses - PPTC 1.9A STRAP Polyswitch PTC RESET

Learn More

Datasheet

Non-Stocked

$0.435

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

1.9 A

15 V

3.9 A

100 A

72 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC Battery Strap 2.5A

LR4-250UF
Littelfuse
1: $1.40
Non-Stocked

Mfr. Part No.
LR4-250UF

Mouser Part No
650-LR4-250UF

Littelfuse

Resettable Fuses - PPTC Battery Strap 2.5A

Learn More

Datasheet

Non-Stocked

$1.40

$1.20

$1.05

$0.956

View

Min.: 1
Mult.: 1

LR4

Strap Mount

Axial

2.5 A

15 V

100 A

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC

LR4-380LF
Littelfuse
1: $1.72
Non-Stocked

Mfr. Part No.
LR4-380LF

Mouser Part No
650-LR4-380LF

Littelfuse

Resettable Fuses - PPTC

Learn More

Datasheet

Non-Stocked

$1.72

$1.47

$1.28

$1.17

View

Min.: 1
Mult.: 1

LR4

Strap Mount

Axial

3.8 A

15 V

8.3 A

100 A

26 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 3.8A 15V 100A Imax

LR4-380SSF
Littelfuse
2,000: $0.61
Non-Stocked

Mfr. Part No.
LR4-380SSF

Mouser Part No
650-LR4-380SSF

Littelfuse

Resettable Fuses - PPTC 3.8A 15V 100A Imax

Learn More

Datasheet

Non-Stocked

$0.61

Min.: 2,000
Mult.: 2,000

LR4

Strap Mount

Axial

3.8 A

15 V

8.3 A

100 A

26 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 15V 3.8A Ih 0.37 ohm

LR4-380XHDF
Littelfuse
10,000: $0.545
Non-Stocked

Mfr. Part No.
LR4-380XHDF

Mouser Part No
650-LR4-380XHDF

Littelfuse

Resettable Fuses - PPTC 15V 3.8A Ih 0.37 ohm

Learn More

Datasheet

Non-Stocked

$0.545

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

3.8 A

15 V

8.3 A

100 A

370 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 5.5A STRAP Polyswitch PTC RESET

LR4-550RAF
Littelfuse
10,000: $0.628
Non-Stocked

Mfr. Part No.
LR4-550RAF

Mouser Part No
650-LR4-550RAF

Littelfuse

Resettable Fuses - PPTC 5.5A STRAP Polyswitch PTC RESET

Learn More

Datasheet

Non-Stocked

$0.628

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

5.5 A

20 V

10.5 A

100 A

16 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC 20V 5.5A Ih 0.016ohm

LR4-550RF
Littelfuse
10,000: $0.628
Non-Stocked

Mfr. Part No.
LR4-550RF

Mouser Part No
650-LR4-550RF

Littelfuse

Resettable Fuses - PPTC 20V 5.5A Ih 0.016ohm

Learn More

Datasheet

Non-Stocked

$0.628

Min.: 10,000
Mult.: 10,000

LR4

Strap Mount

Axial

5.5 A

20 V

10.5 A

100 A

16 mOhms

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC Battery Strap 5.6A

LR4-560F
Littelfuse
2,000: $0.855
Non-Stocked

Mfr. Part No.
LR4-560F

Mouser Part No
650-LR4-560F

Littelfuse

Resettable Fuses - PPTC Battery Strap 5.6A

Learn More

Datasheet

Non-Stocked

$0.855

$0.703

Min.: 2,000
Mult.: 2,000

LR4

Strap Mount

Axial

5.6 A

20 V

100 A

- 40 C

+ 85 C

Bulk

Resettable Fuses - PPTC Battery Strap 6.0A

LR4-600-C100F
Littelfuse
2,000: $0.733
Non-Stocked

Mfr. Part No.
LR4-600-C100F

Mouser Part No
650-LR4-600-C100F

Littelfuse

Resettable Fuses - PPTC Battery Strap 6.0A

Learn More

Datasheet

Non-Stocked

$0.733

$0.716

Min.: 2,000
Mult.: 2,000

LR4

Strap Mount

Axial

6 A

20 V

11.7 A

100 A

14 mOhms

- 40 C

+ 85 C

Bulk

LR4 15/20V PolySwitch Battery Strap PPTCs

Customer Service Office

Company

Resources

Support