Circuit Protection – Mouser United Kingdom

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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 200W 16V 5% Uni-directional

SMF16A
Littelfuse
1: £0.233
9,164In Stock

Mfr. Part No.
SMF16A

Mouser Part No
576-SMF16A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 16V 5% Uni-directional

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Datasheet

9,164In Stock

Cut Tape

£0.233

£0.144

£0.074

£0.072

Reel

£0.062

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 170V

SMF170A
Littelfuse
1: £0.428
2,960In Stock

Mfr. Part No.
SMF170A

Mouser Part No
576-SMF170A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 170V

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Datasheet

2,960In Stock

Cut Tape

£0.428

£0.261

£0.167

£0.144

Reel

£0.083

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 17V 5% Uni-directional

SMF17A
Littelfuse
1: £0.361
10,128In Stock

Mfr. Part No.
SMF17A

Mouser Part No
576-SMF17A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 17V 5% Uni-directional

Learn More

Datasheet

10,128In Stock

Cut Tape

£0.361

£0.221

£0.141

£0.105

Reel

£0.071

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 17V

SMF17CA
Littelfuse
1: £0.428
4,495In Stock

Mfr. Part No.
SMF17CA

Mouser Part No
576-SMF17CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 17V

Learn More

Datasheet

4,495In Stock

Cut Tape

£0.428

£0.254

£0.162

£0.131

Reel

£0.10

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 180V

SMF180A
Littelfuse
1: £0.368
3,000In Stock
3,000Expected 12/05/2026

Mfr. Part No.
SMF180A

Mouser Part No
576-SMF180A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 180V

Learn More

Datasheet

3,000In Stock

3,000Expected 12/05/2026

Cut Tape

£0.368

£0.233

£0.167

£0.135

Reel

£0.094

View

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional

SMF18A
Littelfuse
1: £0.158
4,437In Stock
6,000Expected 01/07/2026

Mfr. Part No.
SMF18A

Mouser Part No
576-SMF18A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional

Learn More

Datasheet

4,437In Stock

6,000Expected 01/07/2026

Cut Tape

£0.158

£0.111

£0.072

£0.071

Reel

£0.062

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 18V

SMF18CA
Littelfuse
1: £0.308
7,305In Stock

Mfr. Part No.
SMF18CA

Mouser Part No
576-SMF18CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 18V

Learn More

Datasheet

7,305In Stock

Cut Tape

£0.308

£0.236

£0.106

£0.10

Reel

£0.082

£0.073

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 200V

SMF200A
Littelfuse
1: £0.323
3,903In Stock

Mfr. Part No.
SMF200A

Mouser Part No
576-SMF200A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 200V

Learn More

Datasheet

3,903In Stock

Cut Tape

£0.323

£0.246

£0.099

£0.097

Reel

£0.093

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 20V 5% Uni-directional

SMF20A
Littelfuse
1: £0.255
10,800In Stock

Mfr. Part No.
SMF20A

Mouser Part No
576-SMF20A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 20V 5% Uni-directional

Learn More

Datasheet

10,800In Stock

Cut Tape

£0.255

£0.114

£0.066

Reel

£0.066

£0.064

£0.062

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 220V

SMF220A
Littelfuse
1: £0.315
2,495In Stock

Mfr. Part No.
SMF220A

Mouser Part No
576-SMF220A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 220V

Learn More

Datasheet

2,495In Stock

Cut Tape

£0.315

£0.246

£0.096

£0.094

£0.093

Reel

£0.077

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 22V 5% Uni-directional

SMF22A
Littelfuse
1: £0.217
2,138In Stock
15,000Expected 14/05/2026

Mfr. Part No.
SMF22A

Mouser Part No
576-SMF22A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 22V 5% Uni-directional

Learn More

Datasheet

2,138In Stock

15,000Expected 14/05/2026

Cut Tape

£0.217

£0.13

£0.088

£0.073

Reel

£0.067

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 22V

SMF22CA
Littelfuse
1: £0.308
3,146In Stock

Mfr. Part No.
SMF22CA

Mouser Part No
576-SMF22CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 22V

Learn More

Datasheet

3,146In Stock

Cut Tape

£0.308

£0.184

£0.104

£0.10

Reel

£0.081

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 24V 5% Uni-directional

SMF24A
Littelfuse
1: £0.15
1,975In Stock
96,000On Order

Mfr. Part No.
SMF24A

Mouser Part No
576-SMF24A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 24V 5% Uni-directional

Learn More

Datasheet

1,975In Stock

96,000On Order

Cut Tape

£0.15

£0.126

£0.077

£0.074

£0.073

Reel

£0.062

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 24V

SMF24CA
Littelfuse
1: £0.30
11,004In Stock
9,000Expected 21/05/2026

Mfr. Part No.
SMF24CA

Mouser Part No
576-SMF24CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 24V

Learn More

Datasheet

11,004In Stock

9,000Expected 21/05/2026

Cut Tape

£0.30

£0.203

£0.095

£0.093

£0.089

Reel

£0.073

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - A 250V

SMF250A
Littelfuse
1: £0.428
2,776In Stock

Mfr. Part No.
SMF250A

Mouser Part No
576-SMF250A

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - A 250V

Learn More

Datasheet

2,776In Stock

Cut Tape

£0.428

£0.261

£0.167

£0.136

£0.113

Reel

£0.069

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 26V

SMF26CA
Littelfuse
1: £0.30
2,200In Stock
3,000Expected 02/06/2026

Mfr. Part No.
SMF26CA

Mouser Part No
576-SMF26CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 26V

Learn More

Datasheet

2,200In Stock

3,000Expected 02/06/2026

Cut Tape

£0.30

£0.235

£0.10

£0.094

Reel

£0.076

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional

SMF28A
Littelfuse
1: £0.233
4,546In Stock
3,000Expected 30/03/2026

Mfr. Part No.
SMF28A

Mouser Part No
576-SMF28A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional

Learn More

Datasheet

4,546In Stock

3,000Expected 30/03/2026

Cut Tape

£0.233

£0.093

£0.078

Reel

£0.062

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional

SMF28A-T13
Littelfuse
1: £0.278
8,860In Stock

Mfr. Part No.
SMF28A-T13

Mouser Part No
576-SMF28A-T13

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 28V 5% Uni-directional

Learn More

Datasheet

8,860In Stock

Cut Tape

£0.278

£0.189

£0.083

£0.079

Reel

£0.065

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

ESD Protection Diodes / TVS Diodes SMF - CA 28V

SMF28CA
Littelfuse
1: £0.361
10,358In Stock

Mfr. Part No.
SMF28CA

Mouser Part No
576-SMF28CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 28V

Learn More

Datasheet

10,358In Stock

Cut Tape

£0.361

£0.251

£0.128

£0.12

Reel

£0.087

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 30V 5% Uni-directional

SMF30A-T13
Littelfuse
1: £0.278
8,804In Stock

Mfr. Part No.
SMF30A-T13

Mouser Part No
576-SMF30A-T13

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 30V 5% Uni-directional

Learn More

Datasheet

8,804In Stock

Cut Tape

£0.278

£0.189

£0.088

£0.081

£0.072

Reel

£0.064

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

ESD Protection Diodes / TVS Diodes SMF - CA 33V

SMF33CA
Littelfuse
1: £0.368
7,387In Stock
6,000Expected 21/05/2026

Mfr. Part No.
SMF33CA

Mouser Part No
576-SMF33CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 33V

Learn More

Datasheet

7,387In Stock

6,000Expected 21/05/2026

Cut Tape

£0.368

£0.233

£0.154

£0.12

Reel

£0.085

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 36V 5% Uni-directional

SMF36A
Littelfuse
1: £0.165
5,522In Stock
12,000On Order

Mfr. Part No.
SMF36A

Mouser Part No
576-SMF36A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 36V 5% Uni-directional

Learn More

Datasheet

5,522In Stock

12,000On Order

Cut Tape

£0.165

£0.099

£0.072

£0.067

Reel

£0.063

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 43V

SMF43CA
Littelfuse
1: £0.405
10,297In Stock

Mfr. Part No.
SMF43CA

Mouser Part No
576-SMF43CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 43V

Learn More

Datasheet

10,297In Stock

Cut Tape

£0.405

£0.251

£0.16

£0.128

Reel

£0.096

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMF - CA 45V

SMF45CA
Littelfuse
1: £0.413
3,865In Stock

Mfr. Part No.
SMF45CA

Mouser Part No
576-SMF45CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMF - CA 45V

Learn More

Datasheet

3,865In Stock

Cut Tape

£0.413

£0.255

£0.162

£0.13

Reel

£0.093

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional

SMF48A
Littelfuse
1: £0.263
5,679In Stock
3,000Expected 18/05/2026

Mfr. Part No.
SMF48A

Mouser Part No
576-SMF48A

Littelfuse

ESD Protection Diodes / TVS Diodes 200W 48V 5% Uni-directional

Learn More

Datasheet

5,679In Stock

3,000Expected 18/05/2026

Cut Tape

£0.263

£0.179

£0.103

£0.102

Reel

£0.071

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Smart Thermostat Solutions

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