Resettable Fuses - PPTC – Mouser United Kingdom

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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.

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Part #

Resettable Fuses - PPTC LR4-1300SSF

LR4-1300SSF
Littelfuse
1: £1.79
4,149In Stock

Mfr. Part No.
LR4-1300SSF

Mouser Part No
650-LR4-1300SSF

Resettable Fuses - PPTC LR4-1300SSF

Datasheet

4,149In Stock

£1.79

£1.44

£1.34

£1.23

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 2.6A 15V 100A Imax

LR4-260F
Littelfuse
1: £0.691
19,637In Stock
40,000Expected 01/09/2026

Mfr. Part No.
LR4-260F

Mouser Part No
650-LR4-260F

Resettable Fuses - PPTC 2.6A 15V 100A Imax

Datasheet

19,637In Stock

40,000Expected 01/09/2026

£0.691

£0.63

£0.52

£0.469

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 LR4-380F

LR4-380F
Littelfuse
1: £0.788
5,551In Stock

Mfr. Part No.
LR4-380F

Mouser Part No
650-LR4-380F

Resettable Fuses - PPTC LR4-380F

Datasheet

5,551In Stock

£0.788

£0.727

£0.58

£0.545

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 5.5A 20V 100A Imax

LR4-550F
Littelfuse
1: £0.917
17,198In Stock

Mfr. Part No.
LR4-550F

Mouser Part No
650-LR4-550F

Resettable Fuses - PPTC 5.5A 20V 100A Imax

Datasheet

17,198In Stock

£0.917

£0.841

£0.698

£0.644

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 6A 20V 100A Imax

LR4-600F
Littelfuse
1: £0.908
5,426In Stock

Mfr. Part No.
LR4-600F

Mouser Part No
650-LR4-600F

Resettable Fuses - PPTC 6A 20V 100A Imax

Datasheet

5,426In Stock

£0.908

£0.841

£0.67

£0.641

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 7.3A 20V 100A Imax

LR4-730F
Littelfuse
1: £0.995
15,630In Stock

Mfr. Part No.
LR4-730F

Mouser Part No
650-LR4-730F

Resettable Fuses - PPTC 7.3A 20V 100A Imax

Datasheet

15,630In Stock

£0.995

£0.925

£0.766

£0.703

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 9A 20V 100A Imax

LR4-900F
Littelfuse
1: £1.30
7,373In Stock

Mfr. Part No.
LR4-900F

Mouser Part No
650-LR4-900F

Resettable Fuses - PPTC 9A 20V 100A Imax

Datasheet

7,373In Stock

£1.30

£1.13

£0.943

£0.863

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: £0.511
2,830In Stock

Mfr. Part No.
LR4-190F

Mouser Part No
650-LR4-190F

Resettable Fuses - PPTC LR4-190F

Datasheet

2,830In Stock

£0.511

£0.467

£0.388

£0.358

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

LR4-260SF
Littelfuse
1: £0.623
440In Stock
1,000Expected 01/09/2026

Mfr. Part No.
LR4-260SF

Mouser Part No
650-LR4-260SF

Resettable Fuses - PPTC 2.6A 15V 100A Imax

Datasheet

440In Stock

1,000Expected 01/09/2026

£0.623

£0.572

£0.475

£0.438

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 4.5A 20V 100A Imax

LR4-450F
Littelfuse
1: £0.803
1,665In Stock
7,000Expected 07/10/2026

Mfr. Part No.
LR4-450F

Mouser Part No
650-LR4-450F

Resettable Fuses - PPTC 4.5A 20V 100A Imax

Datasheet

1,665In Stock

7,000Expected 07/10/2026

£0.803

£0.738

£0.61

£0.565

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 LR4-380XF

LR4-380XF
Littelfuse
1: £0.759
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LR4-380XF

Mouser Part No
650-LR4-380XF

Resettable Fuses - PPTC LR4-380XF

Datasheet

Non-Stocked Lead-Time 17 Weeks

£0.759

£0.695

£0.576

£0.532

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 LR4-600XF

LR4-600XF
Littelfuse
10,000: £0.504
Non-Stocked Lead-Time 17 Weeks

Mfr. Part No.
LR4-600XF

Mouser Part No
650-LR4-600XF

Resettable Fuses - PPTC LR4-600XF

Datasheet

Non-Stocked Lead-Time 17 Weeks

£0.504

Min.: 10,000
Mult.: 1,000

LR4

Strap Mount

SMD/SMT

6 A

20 VDC

11.7 A

100 A

14 mOhms

- 40 C

+ 85 C

Bulk