Circuit Protection – Mouser Singapore

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Smart Thermostat Solutions

Littelfuse Smart Thermostat Solutions components allow designers to implement Internet of Things (IoT) solutions to boost energy efficiency and monitor energy usage. Littelfuse Smart Thermostat solutions complement other Smart Building features, including safety and security systems.

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Types of Circuit Protection

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Results: 627

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Part #

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

SMAJ20A
Littelfuse
1: $0.473
8,382In Stock
5,000Expected 5/5/2026

Mfr. Part No.
SMAJ20A

Mouser Part No
576-SMAJ20A

Littelfuse

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

Learn More

Datasheet

8,382In Stock

5,000Expected 5/5/2026

Cut Tape

$0.473

$0.313

$0.197

$0.154

Reel

$0.115

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ20CA
Littelfuse
1: $0.348
6,698In Stock
5,000Expected 4/5/2026

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 4/5/2026

Cut Tape

$0.348

$0.227

$0.139

$0.138

Reel

$0.121

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ220CA
Littelfuse
1: $0.626
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

$0.626

$0.379

$0.37

$0.346

$0.293

Reel

$0.278

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ22A
Littelfuse
1: $0.50
3,728In 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

3,728In Stock

10,000On Order

Cut Tape

$0.50

$0.325

$0.209

$0.174

Reel

$0.103

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ22CA
Littelfuse
1: $0.417
485In Stock
15,000Expected 15/4/2026

Mfr. Part No.
SMAJ22CA

Mouser Part No
576-SMAJ22CA

Littelfuse

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

Learn More

Datasheet

485In Stock

15,000Expected 15/4/2026

Cut Tape

$0.417

$0.268

$0.181

$0.174

$0.147

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ250CA
Littelfuse
1: $0.973
7,019In Stock
5,000Expected 30/4/2026

Mfr. Part No.
SMAJ250CA

Mouser Part No
576-SMAJ250CA

Littelfuse

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

Learn More

Datasheet

7,019In Stock

5,000Expected 30/4/2026

Cut Tape

$0.973

$0.575

$0.345

$0.279

$0.278

Reel

$0.278

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ26CA
Littelfuse
1: $0.431
5,300In Stock
19,000Expected 14/4/2026

Mfr. Part No.
SMAJ26CA

Mouser Part No
576-SMAJ26CA

Littelfuse

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

Learn More

Datasheet

5,300In Stock

19,000Expected 14/4/2026

Cut Tape

$0.431

$0.292

$0.142

$0.14

View

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ28CA
Littelfuse
1: $0.417
10,881In Stock
10,000Expected 22/4/2026

Mfr. Part No.
SMAJ28CA

Mouser Part No
576-SMAJ28CA

Littelfuse

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

Learn More

Datasheet

10,881In Stock

10,000Expected 22/4/2026

Cut Tape

$0.417

$0.281

$0.139

$0.138

$0.135

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ350A
Littelfuse
1: $0.361
7,120In Stock

Mfr. Part No.
SMAJ350A

Mouser Part No
576-SMAJ350A

Littelfuse

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

Learn More

Datasheet

7,120In Stock

Cut Tape

$0.361

$0.316

$0.277

Reel

$0.259

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ400CA
Littelfuse
1: $0.278
4,377In Stock
5,000Expected 26/2/2026

Mfr. Part No.
SMAJ400CA

Mouser Part No
576-SMAJ400CA

Littelfuse

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

Learn More

Datasheet

4,377In Stock

5,000Expected 26/2/2026

Cut Tape

$0.278

Reel

$0.278

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ40A
Littelfuse
1: $0.236
2,459In Stock
15,000Expected 20/3/2026

Mfr. Part No.
SMAJ40A

Mouser Part No
576-SMAJ40A

Littelfuse

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

Learn More

Datasheet

2,459In Stock

15,000Expected 20/3/2026

Cut Tape

$0.236

$0.157

$0.153

$0.133

Reel

$0.108

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ43A
Littelfuse
1: $0.431
10,620In Stock

Mfr. Part No.
SMAJ43A

Mouser Part No
576-SMAJ43A

Littelfuse

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

Learn More

Datasheet

10,620In Stock

Cut Tape

$0.431

$0.26

$0.165

$0.128

Reel

$0.115

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ43CA
Littelfuse
1: $0.584
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

$0.584

$0.379

$0.225

$0.181

Reel

$0.14

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ440A
Littelfuse
1: $0.264
4,037In Stock
5,000Expected 30/4/2026

Mfr. Part No.
SMAJ440A

Mouser Part No
576-SMAJ440A

Littelfuse

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

Learn More

Datasheet

4,037In Stock

5,000Expected 30/4/2026

Cut Tape

$0.264

$0.259

Reel

$0.259

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-Directional

SMAJ45A
Littelfuse
1: $0.431
12,052In Stock

Mfr. Part No.
SMAJ45A

Mouser Part No
576-SMAJ45A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-Directional

Learn More

Datasheet

12,052In Stock

Cut Tape

$0.431

$0.256

$0.135

$0.133

Reel

$0.104

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 45V 5% Bi-Directional

SMAJ45CA
Littelfuse
1: $0.50
817In Stock
5,000Expected 29/4/2026

Mfr. Part No.
SMAJ45CA

Mouser Part No
576-SMAJ45CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 45V 5% Bi-Directional

Learn More

Datasheet

817In Stock

5,000Expected 29/4/2026

Cut Tape

$0.50

$0.302

$0.147

$0.135

$0.133

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 48V 5% Uni-Directional

SMAJ48A
Littelfuse
1: $0.264
11,941In Stock

Mfr. Part No.
SMAJ48A

Mouser Part No
576-SMAJ48A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 48V 5% Uni-Directional

Learn More

Datasheet

11,941In Stock

Cut Tape

$0.264

$0.139

$0.125

$0.122

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 48V 5% Bi-Directional

SMAJ48CA
Littelfuse
1: $0.556
2,153In Stock
5,000Expected 26/3/2026

Mfr. Part No.
SMAJ48CA

Mouser Part No
576-SMAJ48CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 48V 5% Bi-Directional

Learn More

Datasheet

2,153In Stock

5,000Expected 26/3/2026

Cut Tape

$0.556

$0.37

$0.229

$0.188

View

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ5.0CA
Littelfuse
1: $0.403
15,837In Stock
45,000On Order

Mfr. Part No.
SMAJ5.0CA

Mouser Part No
576-SMAJ5.0CA

Littelfuse

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

Learn More

Datasheet

15,837In Stock

45,000On Order

Cut Tape

$0.403

$0.299

$0.224

$0.174

$0.138

Reel

$0.12

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 51V 5% Uni-Directional

SMAJ51A
Littelfuse
1: $0.556
5,878In Stock
10,000Expected 7/5/2026

Mfr. Part No.
SMAJ51A

Mouser Part No
576-SMAJ51A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 51V 5% Uni-Directional

Learn More

Datasheet

5,878In Stock

10,000Expected 7/5/2026

Cut Tape

$0.556

$0.307

$0.206

$0.154

$0.12

Reel

$0.099

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 51V 5% Bi-Directional

SMAJ51CA
Littelfuse
1: $0.417
11,235In Stock

Mfr. Part No.
SMAJ51CA

Mouser Part No
576-SMAJ51CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 51V 5% Bi-Directional

Learn More

Datasheet

11,235In Stock

Cut Tape

$0.417

$0.192

$0.146

$0.138

$0.133

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 54V 5% Uni-Directional

SMAJ54A
Littelfuse
1: $0.514
4,815In Stock
35,000On Order

Mfr. Part No.
SMAJ54A

Mouser Part No
576-SMAJ54A

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 54V 5% Uni-Directional

Learn More

Datasheet

4,815In Stock

35,000On Order

Cut Tape

$0.514

$0.297

$0.197

$0.152

Reel

$0.106

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

ESD Protection Diodes / TVS Diodes 400W 54V 5% Bi-Directional

SMAJ54CA
Littelfuse
1: $0.598
10,853In Stock
35,000Expected 30/4/2026

Mfr. Part No.
SMAJ54CA

Mouser Part No
576-SMAJ54CA

Littelfuse

ESD Protection Diodes / TVS Diodes 400W 54V 5% Bi-Directional

Learn More

Datasheet

10,853In Stock

35,000Expected 30/4/2026

Cut Tape

$0.598

$0.366

$0.232

$0.174

$0.138

Reel

$0.113

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ6.0CA
Littelfuse
1: $0.278
5,670In Stock
10,000Expected 17/3/2026

Mfr. Part No.
SMAJ6.0CA

Mouser Part No
576-SMAJ6.0CA

Littelfuse

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

Learn More

Datasheet

5,670In Stock

10,000Expected 17/3/2026

Cut Tape

$0.278

$0.213

$0.139

$0.138

Reel

$0.12

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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

SMAJ6.5CA
Littelfuse
1: $0.403
959In Stock
15,000Expected 27/4/2026

Mfr. Part No.
SMAJ6.5CA

Mouser Part No
576-SMAJ6.5CA

Littelfuse

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

Learn More

Datasheet

959In Stock

15,000Expected 27/4/2026

Cut Tape

$0.403

$0.193

$0.145

$0.138

View

Reel

$0.12

MouseReel Available

Min.: 1
Mult.: 1

Reel: 5,000

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