Circuit Protection – Mouser Canada

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

Portable Medical Devices & Connected Drug Delivery

Littelfuse Portable Medical Devices and Connected Drug Delivery Systems feature a range of products ideal for use in wearables, digital hearing aids, insulin pumps, blood pressure monitors, and connected pharmaceutical delivery devices such as auto-injectors and inhalers. Portable and connected devices are changing how medical services are delivered to patients. These connected healthcare products from Littelfuse help lower healthcare costs, improve efficiency, and empower patients.

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

Types of Circuit Protection

List Images

Results: 212

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 #

ESD Protection Diodes / TVS Diodes 15V 100W

SP15-01WTG-C-HV
Littelfuse
1: $0.307
15,359In Stock

Mfr. Part #
SP15-01WTG-C-HV

Mouser Part #
576-SP15-01WTG-C-HV

Littelfuse

ESD Protection Diodes / TVS Diodes 15V 100W

Learn More

Datasheet

15,359In Stock

Cut Tape

$0.307

$0.183

$0.095

$0.092

View

Reel

$0.072

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

ESD Protection Diodes / TVS Diodes 400W 220V 5% Uni-Directional

SMAJ220A
Littelfuse
1: $0.338
4,106In Stock

Mfr. Part #
SMAJ220A

Mouser Part #
576-SMAJ220A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 220V 5% Uni-Directional

Learn More

Datasheet

4,106In Stock

Cut Tape

$0.338

$0.244

Reel

$0.243

$0.221

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 20pF 30kV Bi

SP1020-01WTG
Littelfuse
1: $0.154
19,768In Stock

Mfr. Part #
SP1020-01WTG

Mouser Part #
576-SP1020-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes 20pF 30kV Bi

Learn More

Datasheet

19,768In Stock

Cut Tape

$0.154

$0.12

$0.111

$0.107

$0.106

Reel

$0.097

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15,000

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2.6A

1210L260SLYR
Littelfuse
1: $3.16
1,460In Stock

Mfr. Part #
1210L260SLYR

Mouser Part #
576-1210L260SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2.6A

Learn More

Datasheet

1,460In Stock

Cut Tape

$3.16

$2.76

$2.44

$2.00

View

Reel

$1.16

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 2920 LoRho SL 7.0A

2920L700SLPR
Littelfuse
1: $4.48
926In Stock
2,000Expected 2026-04-10

Mfr. Part #
2920L700SLPR

Mouser Part #
576-2920L700SLPR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 2920 LoRho SL 7.0A

Learn More

Datasheet

926In Stock

2,000Expected 2026-04-10

Cut Tape

$4.48

$3.71

$3.44

$2.86

View

Reel

$2.01

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.8A

1210L380SLYR
Littelfuse
1: $3.36
1,277In Stock

Mfr. Part #
1210L380SLYR

Mouser Part #
576-1210L380SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.8A

Learn More

Datasheet

1,277In Stock

Cut Tape

$3.36

$2.89

$2.36

$2.15

View

Reel

$1.37

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC PTC 15V POLYFUSE SURF MOUNT 0603 0.08A

0603L008YR
Littelfuse
1: $1.35
6,355In Stock

Mfr. Part #
0603L008YR

Mouser Part #
576-0603L008YR

Littelfuse

Resettable Fuses - PPTC PTC 15V POLYFUSE SURF MOUNT 0603 0.08A

Learn More

Datasheet

6,355In Stock

Cut Tape

$1.35

$1.31

$1.22

$1.01

View

Reel

$0.58

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A

0402L010SLKR
Littelfuse
1: $4.08
11,495In Stock

Mfr. Part #
0402L010SLKR

Mouser Part #
576-0402L010SLKR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A

Learn More

Datasheet

11,495In Stock

Cut Tape

$4.08

$3.62

$3.38

$3.21

View

Reel

$2.01

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Resettable Fuses - PPTC 24V .035A 0603 PTC

0603L004YR
Littelfuse
1: $4.25
16,118In Stock

Mfr. Part #
0603L004YR

Mouser Part #
576-0603L004YR

Littelfuse

Resettable Fuses - PPTC 24V .035A 0603 PTC

Learn More

Datasheet

16,118In Stock

Cut Tape

$4.25

$3.53

$3.25

$2.70

View

Reel

$1.98

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 24V 5.0A-HD 50A SMD

2920L500/24SLDR
Littelfuse
1: $4.97
14,015In Stock

Mfr. Part #
2920L500/24SLDR

Mouser Part #
576-2920L500/24SLDR

Littelfuse

Resettable Fuses - PPTC 24V 5.0A-HD 50A SMD

Learn More

Datasheet

14,015In Stock

Cut Tape

$4.97

$4.13

$3.82

$3.16

View

Reel

$2.21

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,500

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.50A

0603L050SLYR
Littelfuse
1: $2.87
36,981In Stock

Mfr. Part #
0603L050SLYR

Mouser Part #
576-0603L050SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.50A

Learn More

Datasheet

36,981In Stock

Cut Tape

$2.87

$2.52

$2.23

$1.90

View

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 24V 7.0A-HD 22A SMD

2920L700/24SLER
Littelfuse
1: $4.84
27,012In Stock

Mfr. Part #
2920L700/24SLER

Mouser Part #
576-2920L700/24SLER

Littelfuse

Resettable Fuses - PPTC 24V 7.0A-HD 22A SMD

Learn More

Datasheet

27,012In Stock

Cut Tape

$4.84

$4.01

$3.70

$3.07

View

Reel

$2.21

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A

0402L020SLKR
Littelfuse
1: $3.88
4,131In Stock

Mfr. Part #
0402L020SLKR

Mouser Part #
576-0402L020SLKR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .100A

Learn More

Datasheet

4,131In Stock

Cut Tape

$3.88

$3.36

$3.09

$2.56

View

Reel

$1.93

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A

0402L050SLKR
Littelfuse
1: $4.25
3,059In Stock

Mfr. Part #
0402L050SLKR

Mouser Part #
576-0402L050SLKR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .500A

Learn More

Datasheet

3,059In Stock

Cut Tape

$4.25

$3.65

$3.38

$3.32

View

Reel

$2.07

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Resettable Fuses - PPTC 60V 10MA-HD 40A SMD

0603L001/60YR
Littelfuse
1: $2.30
18,205In Stock

Mfr. Part #
0603L001/60YR

Mouser Part #
576-0603L001/60YR

Littelfuse

Resettable Fuses - PPTC 60V 10MA-HD 40A SMD

Learn More

Datasheet

18,205In Stock

Cut Tape

$2.30

$2.13

$1.77

$1.63

View

Reel

$1.16

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 60V 20MA-HD 40A SMD

0603L002/60YR
Littelfuse
1: $2.30
11,277In Stock
8,000Expected 2026-02-23

Mfr. Part #
0603L002/60YR

Mouser Part #
576-0603L002/60YR

Littelfuse

Resettable Fuses - PPTC 60V 20MA-HD 40A SMD

Learn More

Datasheet

11,277In Stock

8,000Expected 2026-02-23

Cut Tape

$2.30

$2.13

$1.77

$1.63

View

Reel

$1.16

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 36V 30MA-HD 40A SMD

0603L003/36YR
Littelfuse
1: $2.30
13,998In Stock

Mfr. Part #
0603L003/36YR

Mouser Part #
576-0603L003/36YR

Littelfuse

Resettable Fuses - PPTC 36V 30MA-HD 40A SMD

Learn More

Datasheet

13,998In Stock

Cut Tape

$2.30

$2.13

$1.77

$1.63

View

Reel

$1.02

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 36V 30MA-HD 40A SMD

0603L003/36YR-A
Littelfuse
1: $3.53
3,100In Stock

Mfr. Part #
0603L003/36YR-A

Mouser Part #
576-0603L003/36YR-A

Littelfuse

Resettable Fuses - PPTC 36V 30MA-HD 40A SMD

Learn More

Datasheet

3,100In Stock

Cut Tape

$3.53

$2.93

$2.70

$2.24

View

Reel

$1.41

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC PTC 15V 0603 .100A POLY SURF MOUNT

0603L010YR
Littelfuse
1: $1.87
3,101In Stock

Mfr. Part #
0603L010YR

Mouser Part #
576-0603L010YR

Littelfuse

Resettable Fuses - PPTC PTC 15V 0603 .100A POLY SURF MOUNT

Learn More

Datasheet

3,101In Stock

Cut Tape

$1.87

Reel

$1.87

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC PTC 9V .200A POLY SURF MOUNT

0603L020YR
Littelfuse
1: $1.87
1,385In Stock

Mfr. Part #
0603L020YR

Mouser Part #
576-0603L020YR

Littelfuse

Resettable Fuses - PPTC PTC 9V .200A POLY SURF MOUNT

Learn More

Datasheet

1,385In Stock

Cut Tape

$1.87

Reel

$1.87

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC PTC 6V .350A POLY SURF MOUNT

0603L035YR
Littelfuse
1: $1.87
1,250In Stock
4,000Expected 2026-04-23

Mfr. Part #
0603L035YR

Mouser Part #
576-0603L035YR

Littelfuse

Resettable Fuses - PPTC PTC 6V .350A POLY SURF MOUNT

Learn More

Datasheet

1,250In Stock

4,000Expected 2026-04-23

Cut Tape

$1.87

Reel

$1.87

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

0603L050YR
Littelfuse
1: $1.44
6,770In Stock

Mfr. Part #
0603L050YR

Mouser Part #
576-0603L050YR

Littelfuse

Resettable Fuses - PPTC PTC 6V POLY 0603 0.5A

Learn More

Datasheet

6,770In Stock

Cut Tape

$1.44

$1.33

$1.28

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1A

0603L100SLYR
Littelfuse
1: $2.52
5,774In Stock
8,000Expected 2026-02-23

Mfr. Part #
0603L100SLYR

Mouser Part #
576-0603L100SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1A

Learn More

Datasheet

5,774In Stock

8,000Expected 2026-02-23

Cut Tape

$2.52

$2.32

$1.93

$1.78

View

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.5A

0603L150SLYR
Littelfuse
1: $2.69
2,872In Stock
4,000Expected 2026-03-23

Mfr. Part #
0603L150SLYR

Mouser Part #
576-0603L150SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.5A

Learn More

Datasheet

2,872In Stock

4,000Expected 2026-03-23

Cut Tape

$2.69

$2.52

$2.32

$1.93

View

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.75A

0603L175SLYR
Littelfuse
1: $2.52
17,123In Stock

Mfr. Part #
0603L175SLYR

Mouser Part #
576-0603L175SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 1.75A

Learn More

Datasheet

17,123In Stock

Cut Tape

$2.52

$2.32

$1.93

$1.78

View

Reel

$1.28

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Portable Medical Devices & Connected Drug Delivery

Types of Circuit Protection

Mouser Electronics®

Company

Resources

Support