Circuit Protection – Mouser Singapore

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

Connected Drug Delivery Device Ecosystem Solutions

Littelfuse features a wide portfolio of products used to build and enhance drug delivery systems. These drug delivery systems include auto-injectors, continuous glucose monitors, insulin pumps, drug delivery pens, and wearable injectors. Products offered by Littelfuse for these applications include detect switches, plunger position sensors, microcontrollers, thermistors, TVS diode arrays, gate drivers, and fuses.

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

Types of Circuit Protection

List Images

Results: 211

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 12V 5% Bi-Directional

SMAJ12CA
Littelfuse
1: $0.389
39,850In Stock

Mfr. Part No.
SMAJ12CA

Mouser Part No
576-SMAJ12CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 12V 5% Bi-Directional

Learn More

Datasheet

39,850In Stock

Cut Tape

$0.389

$0.314

$0.181

$0.174

Reel

$0.12

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 13V 5% Bi-Directional

SMAJ13CA
Littelfuse
1: $0.306
19,043In Stock

Mfr. Part No.
SMAJ13CA

Mouser Part No
576-SMAJ13CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 13V 5% Bi-Directional

Learn More

Datasheet

19,043In Stock

Cut Tape

$0.306

$0.19

$0.128

$0.121

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 24V 5% Uni-Directional

SMAJ24A
Littelfuse
1: $0.292
22,239In Stock
25,000Expected 30/4/2026

Mfr. Part No.
SMAJ24A

Mouser Part No
576-SMAJ24A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 24V 5% Uni-Directional

Learn More

Datasheet

22,239In Stock

25,000Expected 30/4/2026

Cut Tape

$0.292

$0.157

$0.103

$0.10

$0.099

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 24V 5% Bi-Directional

SMAJ24CA
Littelfuse
1: $0.389
26,868In Stock

Mfr. Part No.
SMAJ24CA

Mouser Part No
576-SMAJ24CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 24V 5% Bi-Directional

Learn More

Datasheet

26,868In Stock

Cut Tape

$0.389

$0.254

$0.164

$0.152

Reel

$0.125

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ26A
Littelfuse
1: $0.348
35,542In Stock

Mfr. Part No.
SMAJ26A

Mouser Part No
576-SMAJ26A

Littelfuse

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

Learn More

Datasheet

35,542In Stock

Cut Tape

$0.348

$0.228

$0.136

$0.133

Reel

$0.111

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ28A
Littelfuse
1: $0.334
47,376In Stock

Mfr. Part No.
SMAJ28A

Mouser Part No
576-SMAJ28A

Littelfuse

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

Learn More

Datasheet

47,376In Stock

Cut Tape

$0.334

$0.254

$0.136

$0.135

Reel

$0.106

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 300V 5% Bi-Directional

SMAJ300CA
Littelfuse
1: $0.723
10,010In Stock
20,000Expected 13/5/2026

Mfr. Part No.
SMAJ300CA

Mouser Part No
576-SMAJ300CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 300V 5% Bi-Directional

Learn More

Datasheet

10,010In Stock

20,000Expected 13/5/2026

Cut Tape

$0.723

$0.634

$0.441

$0.343

View

Reel

$0.238

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ30A
Littelfuse
1: $0.334
28,967In Stock
20,000Expected 6/5/2026

Mfr. Part No.
SMAJ30A

Mouser Part No
576-SMAJ30A

Littelfuse

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

Learn More

Datasheet

28,967In Stock

20,000Expected 6/5/2026

Cut Tape

$0.334

$0.249

$0.14

$0.139

View

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ30CA
Littelfuse
1: $0.348
64,959In Stock
45,000Expected 5/5/2026

Mfr. Part No.
SMAJ30CA

Mouser Part No
576-SMAJ30CA

Littelfuse

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

Learn More

Datasheet

64,959In Stock

45,000Expected 5/5/2026

Cut Tape

$0.348

$0.246

$0.139

$0.138

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 33V 5% Uni-Directional

SMAJ33A
Littelfuse
1: $0.334
44,860In Stock

Mfr. Part No.
SMAJ33A

Mouser Part No
576-SMAJ33A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 33V 5% Uni-Directional

Learn More

Datasheet

44,860In Stock

Cut Tape

$0.334

$0.221

$0.128

$0.122

Reel

$0.104

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 33V 5% Bi-Directional

SMAJ33CA
Littelfuse
1: $0.403
31,186In Stock
20,000Expected 5/5/2026

Mfr. Part No.
SMAJ33CA

Mouser Part No
576-SMAJ33CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 33V 5% Bi-Directional

Learn More

Datasheet

31,186In Stock

20,000Expected 5/5/2026

Cut Tape

$0.403

$0.267

$0.152

$0.15

Reel

$0.121

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ350CA
Littelfuse
1: $0.723
13,903In Stock

Mfr. Part No.
SMAJ350CA

Mouser Part No
576-SMAJ350CA

Littelfuse

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

Learn More

Datasheet

13,903In Stock

Cut Tape

$0.723

$0.43

$0.341

$0.309

View

Reel

$0.278

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 36V 5% Uni-Directional

SMAJ36A
Littelfuse
1: $0.348
25,566In Stock
15,000Expected 21/4/2026

Mfr. Part No.
SMAJ36A

Mouser Part No
576-SMAJ36A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 36V 5% Uni-Directional

Learn More

Datasheet

25,566In Stock

15,000Expected 21/4/2026

Cut Tape

$0.348

$0.254

$0.175

$0.157

Reel

$0.11

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 36V 5% Bi-Directional

SMAJ36CA
Littelfuse
1: $0.375
23,651In Stock

Mfr. Part No.
SMAJ36CA

Mouser Part No
576-SMAJ36CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 36V 5% Bi-Directional

Learn More

Datasheet

23,651In Stock

Cut Tape

$0.375

$0.263

$0.22

$0.193

Reel

$0.124

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ40CA
Littelfuse
1: $0.32
24,594In Stock
20,000Expected 5/5/2026

Mfr. Part No.
SMAJ40CA

Mouser Part No
576-SMAJ40CA

Littelfuse

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

Learn More

Datasheet

24,594In Stock

20,000Expected 5/5/2026

Cut Tape

$0.32

$0.256

$0.228

$0.174

$0.138

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 440V 5% Bi-Directional

SMAJ440CA
Littelfuse
1: $1.17
12,281In Stock

Mfr. Part No.
SMAJ440CA

Mouser Part No
576-SMAJ440CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 440V 5% Bi-Directional

Learn More

Datasheet

12,281In Stock

Cut Tape

$1.17

$0.676

$0.51

$0.392

View

Reel

$0.278

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ5.0A
Littelfuse
1: $0.334
102,246In Stock

Mfr. Part No.
SMAJ5.0A

Mouser Part No
576-SMAJ5.0A

Littelfuse

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

Learn More

Datasheet

102,246In Stock

Cut Tape

$0.334

$0.249

$0.14

$0.139

View

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 58V 5% Uni-Directional

SMAJ58A
Littelfuse
1: $0.306
47,598In Stock

Mfr. Part No.
SMAJ58A

Mouser Part No
576-SMAJ58A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 58V 5% Uni-Directional

Learn More

Datasheet

47,598In Stock

Cut Tape

$0.306

$0.218

$0.143

$0.142

Reel

$0.111

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 58V 5% Bi-Directional

SMAJ58CA
Littelfuse
1: $0.528
31,427In Stock
40,000Expected 18/5/2026

Mfr. Part No.
SMAJ58CA

Mouser Part No
576-SMAJ58CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 58V 5% Bi-Directional

Learn More

Datasheet

31,427In Stock

40,000Expected 18/5/2026

Cut Tape

$0.528

$0.418

$0.259

$0.204

Reel

$0.138

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 6V 5% Uni-Directional

SMAJ6.0A
Littelfuse
1: $0.222
39,188In Stock

Mfr. Part No.
SMAJ6.0A

Mouser Part No
576-SMAJ6.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 6V 5% Uni-Directional

Learn More

Datasheet

39,188In Stock

Cut Tape

$0.222

$0.179

$0.136

$0.135

Reel

$0.104

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-Directional

SMAJ6.5A
Littelfuse
1: $0.459
25,182In Stock

Mfr. Part No.
SMAJ6.5A

Mouser Part No
576-SMAJ6.5A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-Directional

Learn More

Datasheet

25,182In Stock

Cut Tape

$0.459

$0.206

$0.139

$0.136

Reel

$0.11

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 64V 5% Uni-Directional

SMAJ64A
Littelfuse
1: $0.445
38,378In Stock

Mfr. Part No.
SMAJ64A

Mouser Part No
576-SMAJ64A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 64V 5% Uni-Directional

Learn More

Datasheet

38,378In Stock

Cut Tape

$0.445

$0.302

$0.146

$0.143

View

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 64V 5% Bi-Directional

SMAJ64CA
Littelfuse
1: $0.389
18,529In Stock

Mfr. Part No.
SMAJ64CA

Mouser Part No
576-SMAJ64CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 64V 5% Bi-Directional

Learn More

Datasheet

18,529In Stock

Cut Tape

$0.389

$0.278

$0.146

$0.145

$0.138

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .350A

0402L035SLKR
Littelfuse
1: $3.57
8,239In Stock

Mfr. Part No.
0402L035SLKR

Mouser Part No
576-0402L035SLKR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .350A

Learn More

Datasheet

8,239In Stock

Cut Tape

$3.57

$3.02

$2.81

$2.38

View

Reel

$1.82

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A

0603L075SLYR
Littelfuse
1: $2.13
3,175In Stock
4,000Expected 23/2/2026

Mfr. Part No.
0603L075SLYR

Mouser Part No
576-0603L075SLYR

Littelfuse

Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A

Learn More

Datasheet

3,175In Stock

4,000Expected 23/2/2026

Cut Tape

$2.13

$2.03

$1.75

$1.61

View

Reel

$1.16

MouseReel Available

Min.: 1
Mult.: 1

Reel: 4,000

Connected Drug Delivery Device Ecosystem Solutions

Types of Circuit Protection

Customer Service Office

Company

Resources

Support