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: 539

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Part #

ESD Protection Diodes / TVS Diodes SMAJ - CA 188V

SMAJ188CA
Littelfuse
1: $0.789
7,396In Stock

Mfr. Part No.
SMAJ188CA

Mouser Part No
576-SMAJ188CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMAJ - CA 188V

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Datasheet

7,396In Stock

Cut Tape

$0.789

$0.442

$0.306

$0.241

Reel

$0.156

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ18A
Littelfuse
1: $0.612
3,348In Stock
40,000On Order

Mfr. Part No.
SMAJ18A

Mouser Part No
576-SMAJ18A

Littelfuse

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

Learn More

Datasheet

3,348In Stock

40,000On Order

Cut Tape

$0.612

$0.29

$0.224

$0.177

Reel

$0.11

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ18CA
Littelfuse
1: $0.626
8,648In Stock
10,000Expected 1/2/2027

Mfr. Part No.
SMAJ18CA

Mouser Part No
576-SMAJ18CA

Littelfuse

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

Learn More

Datasheet

8,648In Stock

10,000Expected 1/2/2027

Cut Tape

$0.626

$0.307

$0.253

$0.20

Reel

$0.116

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ200A
Littelfuse
1: $0.68
3,673In Stock
5,000Expected 26/1/2027

Mfr. Part No.
SMAJ200A

Mouser Part No
576-SMAJ200A

Littelfuse

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

Learn More

Datasheet

3,673In Stock

5,000Expected 26/1/2027

Cut Tape

$0.68

$0.303

$0.265

$0.199

View

Reel

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ200CA
Littelfuse
1: $0.639
12,113In Stock

Mfr. Part No.
SMAJ200CA

Mouser Part No
576-SMAJ200CA

Littelfuse

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

Learn More

Datasheet

12,113In Stock

Cut Tape

$0.639

$0.321

$0.257

$0.204

Reel

$0.122

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ20A
Littelfuse
1: $0.598
8,807In Stock
20,000Expected 2/12/2026

Mfr. Part No.
SMAJ20A

Mouser Part No
576-SMAJ20A

Littelfuse

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

Learn More

Datasheet

8,807In Stock

20,000Expected 2/12/2026

Cut Tape

$0.598

$0.29

$0.238

$0.189

Reel

$0.112

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ20CA
Littelfuse
1: $0.666
86In Stock
20,000On Order

Mfr. Part No.
SMAJ20CA

Mouser Part No
576-SMAJ20CA

Littelfuse

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

Learn More

Datasheet

86In Stock

20,000On Order

Cut Tape

$0.666

$0.358

$0.254

$0.196

View

Reel

$0.117

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ220A
Littelfuse
1: $1.07
3,256In Stock

Mfr. Part No.
SMAJ220A

Mouser Part No
576-SMAJ220A

Littelfuse

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

Learn More

Datasheet

3,256In Stock

Cut Tape

$1.07

$0.499

$0.418

$0.325

View

Reel

$0.249

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ22CA
Littelfuse
1: $0.598
10,729In Stock

Mfr. Part No.
SMAJ22CA

Mouser Part No
576-SMAJ22CA

Littelfuse

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

Learn More

Datasheet

10,729In Stock

Cut Tape

$0.598

$0.29

$0.231

$0.18

Reel

$0.112

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ24CA
Littelfuse
1: $0.694
2,474In Stock
45,000Expected 19/10/2026

Mfr. Part No.
SMAJ24CA

Mouser Part No
576-SMAJ24CA

Littelfuse

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

Learn More

Datasheet

2,474In Stock

45,000Expected 19/10/2026

Cut Tape

$0.694

$0.364

$0.269

$0.201

$0.15

Reel

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ26A
Littelfuse
1: $0.68
827In Stock
40,000On Order

Mfr. Part No.
SMAJ26A

Mouser Part No
576-SMAJ26A

Littelfuse

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

Learn More

Datasheet

827In Stock

40,000On Order

Cut Tape

$0.68

$0.362

$0.262

$0.196

View

Reel

$0.107

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ26CA
Littelfuse
1: $0.626
34,804In Stock
80,000On Order

Mfr. Part No.
SMAJ26CA

Mouser Part No
576-SMAJ26CA

Littelfuse

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

Learn More

Datasheet

34,804In Stock

80,000On Order

Cut Tape

$0.626

$0.307

$0.269

$0.201

Reel

$0.116

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ28A
Littelfuse
1: $0.585
3,807In Stock
69,880On Order

Mfr. Part No.
SMAJ28A

Mouser Part No
576-SMAJ28A

Littelfuse

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

Learn More

Datasheet

3,807In Stock

69,880On Order

Cut Tape

$0.585

$0.339

$0.216

$0.16

Reel

$0.107

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ300A
Littelfuse
1: $1.14
2,672In Stock
5,000Expected 4/2/2027

Mfr. Part No.
SMAJ300A

Mouser Part No
576-SMAJ300A

Littelfuse

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

Learn More

Datasheet

2,672In Stock

5,000Expected 4/2/2027

Cut Tape

$1.14

$0.522

$0.46

$0.351

View

Reel

$0.265

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ33CA
Littelfuse
1: $0.653
11In Stock
140,000On Order

Mfr. Part No.
SMAJ33CA

Mouser Part No
576-SMAJ33CA

Littelfuse

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

Learn More

Datasheet

11In Stock

140,000On Order

Cut Tape

$0.653

$0.348

$0.265

$0.193

$0.19

Reel

$0.114

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ400A
Littelfuse
1: $1.07
5,225In Stock

Mfr. Part No.
SMAJ400A

Mouser Part No
576-SMAJ400A

Littelfuse

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

Learn More

Datasheet

5,225In Stock

Cut Tape

$1.07

$0.566

$0.498

$0.381

View

Reel

$0.265

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ400CA
Littelfuse
1: $1.24
282In Stock
40,000On Order

Mfr. Part No.
SMAJ400CA

Mouser Part No
576-SMAJ400CA

Littelfuse

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

Learn More

Datasheet

282In Stock

40,000On Order

Cut Tape

$1.24

$0.641

$0.496

$0.381

Reel

$0.246

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ43A
Littelfuse
1: $0.639
17,159In Stock

Mfr. Part No.
SMAJ43A

Mouser Part No
576-SMAJ43A

Littelfuse

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

Learn More

Datasheet

17,159In Stock

Cut Tape

$0.639

$0.307

$0.245

$0.182

Reel

$0.117

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ43CA
Littelfuse
1: $0.626
12,556In Stock
10,000Expected 16/11/2026

Mfr. Part No.
SMAJ43CA

Mouser Part No
576-SMAJ43CA

Littelfuse

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

Learn More

Datasheet

12,556In Stock

10,000Expected 16/11/2026

Cut Tape

$0.626

$0.29

$0.238

$0.196

Reel

$0.117

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ440A
Littelfuse
1: $0.843
6,772In Stock

Mfr. Part No.
SMAJ440A

Mouser Part No
576-SMAJ440A

Littelfuse

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

Learn More

Datasheet

6,772In Stock

Cut Tape

$0.843

$0.382

$0.336

$0.265

Reel

$0.265

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ45A
Littelfuse
1: $0.612
11,266In Stock
10,000Expected 19/1/2027

Mfr. Part No.
SMAJ45A

Mouser Part No
576-SMAJ45A

Littelfuse

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

Learn More

Datasheet

11,266In Stock

10,000Expected 19/1/2027

Cut Tape

$0.612

$0.307

$0.231

$0.178

Reel

$0.117

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ45CA
Littelfuse
1: $0.639
2,880In Stock
15,000On Order

Mfr. Part No.
SMAJ45CA

Mouser Part No
576-SMAJ45CA

Littelfuse

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

Learn More

Datasheet

2,880In Stock

15,000On Order

Cut Tape

$0.639

$0.29

$0.254

$0.19

View

Reel

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ48A
Littelfuse
1: $0.639
1,362In Stock
44,930On Order

Mfr. Part No.
SMAJ48A

Mouser Part No
576-SMAJ48A

Littelfuse

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

Learn More

Datasheet

1,362In Stock

44,930On Order

Cut Tape

$0.639

$0.333

$0.248

$0.185

Reel

$0.102

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ48CA
Littelfuse
1: $0.694
1,747In Stock
10,000Expected 3/2/2027

Mfr. Part No.
SMAJ48CA

Mouser Part No
576-SMAJ48CA

Littelfuse

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

Learn More

Datasheet

1,747In Stock

10,000Expected 3/2/2027

Cut Tape

$0.694

$0.358

$0.269

$0.201

Reel

$0.116

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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

SMAJ51CA
Littelfuse
1: $0.68
7,586In Stock
10,000Expected 3/12/2026

Mfr. Part No.
SMAJ51CA

Mouser Part No
576-SMAJ51CA

Littelfuse

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

Learn More

Datasheet

7,586In Stock

10,000Expected 3/12/2026

Cut Tape

$0.68

$0.307

$0.239

$0.186

Reel

$0.112

View

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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