Circuit Protection – Mouser South Africa

.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 400W 16V 5% Uni-Directional

SMAJ16A
Littelfuse
1: $0.28
2,636In Stock
10,000On Order

Mfr. Part No.
SMAJ16A

Mouser Part No
576-SMAJ16A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 16V 5% Uni-Directional

Learn More

Datasheet

2,636In Stock

10,000On Order

Cut Tape

$0.28

$0.204

$0.131

$0.121

Reel

$0.083

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 16V 5% Bi-Directional

SMAJ16CA
Littelfuse
1: $0.25
4,108In Stock
10,000Expected 2026/04/30

Mfr. Part No.
SMAJ16CA

Mouser Part No
576-SMAJ16CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 16V 5% Bi-Directional

Learn More

Datasheet

4,108In Stock

10,000Expected 2026/04/30

Cut Tape

$0.25

$0.185

$0.128

$0.115

$0.09

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 170V 5% Uni-Directional

SMAJ170A
Littelfuse
1: $0.45
4,773In Stock

Mfr. Part No.
SMAJ170A

Mouser Part No
576-SMAJ170A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 170V 5% Uni-Directional

Learn More

Datasheet

4,773In Stock

Cut Tape

$0.45

$0.276

$0.174

$0.134

Reel

$0.09

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 170V 5% Bi-Directional

SMAJ170CA
Littelfuse
1: $0.32
10,443In Stock

Mfr. Part No.
SMAJ170CA

Mouser Part No
576-SMAJ170CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 170V 5% Bi-Directional

Learn More

Datasheet

10,443In Stock

Cut Tape

$0.32

$0.176

$0.134

$0.126

Reel

$0.099

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 17V 5% Bi-Directional

SMAJ17CA
Littelfuse
1: $0.311
6,119In Stock

Mfr. Part No.
SMAJ17CA

Mouser Part No
576-SMAJ17CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 17V 5% Bi-Directional

Learn More

Datasheet

6,119In Stock

Cut Tape

$0.311

$0.211

$0.105

Reel

$0.10

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 180V 5% Uni-Directional

SMAJ180A
Littelfuse
1: $0.361
7,040In Stock

Mfr. Part No.
SMAJ180A

Mouser Part No
576-SMAJ180A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 180V 5% Uni-Directional

Learn More

Datasheet

7,040In Stock

Cut Tape

$0.361

$0.205

$0.142

$0.122

Reel

$0.086

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes SMAJ - A 188V

SMAJ188A
Littelfuse
1: $0.45
4,932In Stock

Mfr. Part No.
SMAJ188A

Mouser Part No
576-SMAJ188A

Littelfuse

ESD Protection Diodes / TVS Diodes SMAJ - A 188V

Learn More

Datasheet

4,932In Stock

Cut Tape

$0.45

$0.311

$0.165

$0.147

Reel

$0.116

View

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes SMAJ - CA 188V

SMAJ188CA
Littelfuse
1: $0.461
7,396In Stock

Mfr. Part No.
SMAJ188CA

Mouser Part No
576-SMAJ188CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMAJ - CA 188V

Learn More

Datasheet

7,396In Stock

Cut Tape

$0.461

$0.328

$0.133

$0.131

Reel

$0.109

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 18V 5% Uni-Directional

SMAJ18A
Littelfuse
1: $0.311
10,989In Stock

Mfr. Part No.
SMAJ18A

Mouser Part No
576-SMAJ18A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 18V 5% Uni-Directional

Learn More

Datasheet

10,989In Stock

Cut Tape

$0.311

$0.159

$0.10

$0.098

View

Reel

$0.071

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 18V 5% Bi-Directional

SMAJ18CA
Littelfuse
1: $0.22
1,562In Stock
14,500Expected 2026/05/25

Mfr. Part No.
SMAJ18CA

Mouser Part No
576-SMAJ18CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 18V 5% Bi-Directional

Learn More

Datasheet

1,562In Stock

14,500Expected 2026/05/25

Cut Tape

$0.22

$0.169

$0.117

$0.112

Reel

$0.083

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 200V 5% Uni-Directional

SMAJ200A
Littelfuse
1: $0.461
6,034In Stock

Mfr. Part No.
SMAJ200A

Mouser Part No
576-SMAJ200A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 200V 5% Uni-Directional

Learn More

Datasheet

6,034In Stock

Cut Tape

$0.461

$0.315

$0.18

$0.143

$0.104

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 200V 5% Bi-Directional

SMAJ200CA
Littelfuse
1: $0.35
7,817In Stock

Mfr. Part No.
SMAJ200CA

Mouser Part No
576-SMAJ200CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 200V 5% Bi-Directional

Learn More

Datasheet

7,817In Stock

Cut Tape

$0.35

$0.242

$0.124

$0.115

$0.104

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 20V 5% Uni-Directional

SMAJ20A
Littelfuse
1: $0.25
6,759In Stock
5,000Expected 2026/05/05

Mfr. Part No.
SMAJ20A

Mouser Part No
576-SMAJ20A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 20V 5% Uni-Directional

Learn More

Datasheet

6,759In Stock

5,000Expected 2026/05/05

Cut Tape

$0.25

$0.181

$0.127

$0.11

Reel

$0.081

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 20V 5% Bi-Directional

SMAJ20CA
Littelfuse
1: $0.25
6,698In Stock
5,000Expected 2026/05/04

Mfr. Part No.
SMAJ20CA

Mouser Part No
576-SMAJ20CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 20V 5% Bi-Directional

Learn More

Datasheet

6,698In Stock

5,000Expected 2026/05/04

Cut Tape

$0.25

$0.163

$0.10

$0.099

Reel

$0.087

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ220CA
Littelfuse
1: $0.45
5,177In Stock

Mfr. Part No.
SMAJ220CA

Mouser Part No
576-SMAJ220CA

Littelfuse

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

Learn More

Datasheet

5,177In Stock

Cut Tape

$0.45

$0.273

$0.266

$0.249

$0.211

Reel

$0.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional

SMAJ22A
Littelfuse
1: $0.361
3,433In Stock
10,000On Order

Mfr. Part No.
SMAJ22A

Mouser Part No
576-SMAJ22A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 22V 5% Uni-Directional

Learn More

Datasheet

3,433In Stock

10,000On Order

Cut Tape

$0.361

$0.234

$0.15

$0.126

Reel

$0.074

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 22V 5% Bi-Directional

SMAJ22CA
Littelfuse
1: $0.30
180In Stock
15,000Expected 2026/04/15

Mfr. Part No.
SMAJ22CA

Mouser Part No
576-SMAJ22CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 22V 5% Bi-Directional

Learn More

Datasheet

180In Stock

15,000Expected 2026/04/15

Cut Tape

$0.30

$0.193

$0.13

$0.126

$0.106

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 250V 5% Bi-Directional

SMAJ250CA
Littelfuse
1: $0.70
7,003In Stock
5,000Expected 2026/04/30

Mfr. Part No.
SMAJ250CA

Mouser Part No
576-SMAJ250CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 250V 5% Bi-Directional

Learn More

Datasheet

7,003In Stock

5,000Expected 2026/04/30

Cut Tape

$0.70

$0.414

$0.248

$0.201

$0.20

Reel

$0.20

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 26V 5% Bi-Directional

SMAJ26CA
Littelfuse
1: $0.30
4,594In Stock
19,000Expected 2026/04/14

Mfr. Part No.
SMAJ26CA

Mouser Part No
576-SMAJ26CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 26V 5% Bi-Directional

Learn More

Datasheet

4,594In Stock

19,000Expected 2026/04/14

Cut Tape

$0.30

$0.199

$0.102

$0.099

View

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 28V 5% Bi-Directional

SMAJ28CA
Littelfuse
1: $0.30
10,284In Stock
19,650On Order

Mfr. Part No.
SMAJ28CA

Mouser Part No
576-SMAJ28CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 28V 5% Bi-Directional

Learn More

Datasheet

10,284In Stock

19,650On Order

Cut Tape

$0.30

$0.202

$0.10

$0.099

Reel

$0.081

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 30V 5% Uni-Directional

SMAJ30A
Littelfuse
1: $0.24
18,792In Stock
20,000Expected 2026/05/06

Mfr. Part No.
SMAJ30A

Mouser Part No
576-SMAJ30A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 30V 5% Uni-Directional

Learn More

Datasheet

18,792In Stock

20,000Expected 2026/05/06

Cut Tape

$0.24

$0.179

$0.101

$0.10

View

Reel

$0.071

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 350V 5% Uni-Directional

SMAJ350A
Littelfuse
1: $0.261
7,020In Stock

Mfr. Part No.
SMAJ350A

Mouser Part No
576-SMAJ350A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 350V 5% Uni-Directional

Learn More

Datasheet

7,020In Stock

Cut Tape

$0.261

$0.227

$0.199

Reel

$0.186

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 40V 5% Uni-Directional

SMAJ40A
Littelfuse
1: $0.17
2,389In Stock
35,000On Order

Mfr. Part No.
SMAJ40A

Mouser Part No
576-SMAJ40A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 40V 5% Uni-Directional

Learn More

Datasheet

2,389In Stock

35,000On Order

Cut Tape

$0.17

$0.113

$0.11

$0.097

Reel

$0.078

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 43V 5% Uni-Directional

SMAJ43A
Littelfuse
1: $0.311
10,564In Stock

Mfr. Part No.
SMAJ43A

Mouser Part No
576-SMAJ43A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 43V 5% Uni-Directional

Learn More

Datasheet

10,564In Stock

Cut Tape

$0.311

$0.187

$0.119

$0.092

Reel

$0.083

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 43V 5% Bi-Directional

SMAJ43CA
Littelfuse
1: $0.42
15,591In Stock

Mfr. Part No.
SMAJ43CA

Mouser Part No
576-SMAJ43CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 43V 5% Bi-Directional

Learn More

Datasheet

15,591In Stock

Cut Tape

$0.42

$0.273

$0.162

$0.13

Reel

$0.101

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Portable Medical Devices & Connected Drug Delivery

Types of Circuit Protection

Customer Service Office

Company

Resources

Support