Circuit Protection – Mouser United Kingdom

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

High-Power Conversion

Littelfuse provides a wide portfolio of products for High-Power Conversion, including diodes, gate drivers, high-speed fuses, MOSFETs, and power modules. These products are broken down into four functions: rectifier, break chopper or PFC, inverter, and semiconductor protection.

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

Types of Circuit Protection

List Images

Results: 632

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 600W 24V 5% Uni-Directional

SMBJ24A
Littelfuse
1: £0.18
232,175In Stock

Mfr. Part No.
SMBJ24A

Mouser Part No
576-SMBJ24A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 24V 5% Uni-Directional

Learn More

Datasheet

232,175In Stock

Cut Tape

£0.18

£0.14

£0.094

£0.088

Reel

£0.06

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A

PSR070UL0200Z
Littelfuse
1: £218.08
3In Stock

Mfr. Part No.
PSR070UL0200Z

Mouser Part No
576-PSR070UL0200Z

Littelfuse

Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A

Learn More

Datasheet

3In Stock

£218.08

£212.04

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W 400V 5% Uni-Directional

SMBJ400A
Littelfuse
1: £0.278
23,856In Stock

Mfr. Part No.
SMBJ400A

Mouser Part No
576-SMBJ400A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 400V 5% Uni-Directional

Learn More

Datasheet

23,856In Stock

Cut Tape

£0.278

£0.198

£0.165

Reel

£0.165

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Specialty Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A

PSR072DL0500X
Littelfuse
1: £319.01
7In Stock

Mfr. Part No.
PSR072DL0500X

Mouser Part No
576-PSR072DL0500X

Littelfuse

Specialty Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A

Learn More

Datasheet

7In Stock

£319.01

£290.32

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2K OHM 10% MELF

SM202F1K
Littelfuse
1: £1.70
459In Stock

Mfr. Part No.
SM202F1K

Mouser Part No
576-SM202F1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2K OHM 10% MELF

Learn More

Datasheet

459In Stock

£1.70

£1.27

£1.02

£0.96

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors 1K OHM +/-10%

SM102B1K
Littelfuse
1: £1.15
691In Stock

Mfr. Part No.
SM102B1K

Mouser Part No
803-SM102B1K

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors 1K OHM +/-10%

Learn More

Datasheet

691In Stock

£1.15

£1.10

£0.96

£0.943

View

Min.: 1
Mult.: 1

Specialty Fuses POWR-SPEED SQB Size 32 US LONG BL 400A

PSR032UL0400X
Littelfuse
1: £260.52
2In Stock

Mfr. Part No.
PSR032UL0400X

Mouser Part No
576-PSR032UL0400X

Littelfuse

Specialty Fuses POWR-SPEED SQB Size 32 US LONG BL 400A

Learn More

Datasheet

2In Stock

£260.52

£251.55

View

Min.: 1
Mult.: 1

Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 80A

PSR070UL0080Z
Littelfuse
1: £276.31
1In Stock

Mfr. Part No.
PSR070UL0080Z

Mouser Part No
576-PSR070UL0080Z

Littelfuse

Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 80A

Learn More

Datasheet

1In Stock

£276.31

£243.17

View

Min.: 1
Mult.: 1

Specialty Fuses 700A 700V SIZE 31 Flush End Mtrc Thred

PSR031FL0700Z
Littelfuse
1: £260.49
1In Stock

Mfr. Part No.
PSR031FL0700Z

Mouser Part No
576-PSR031FL0700Z

Littelfuse

Specialty Fuses 700A 700V SIZE 31 Flush End Mtrc Thred

Learn More

Datasheet

1In Stock

£260.49

£194.97

£188.02

Quote

Min.: 1
Mult.: 1

Specialty Fuses 350A 700V SIZE 31 Flush End Mtrc Thred

PSR031FL0350Z
Littelfuse
1: £190.56
1In Stock

Mfr. Part No.
PSR031FL0350Z

Mouser Part No
576-PSR031FL0350Z

Littelfuse

Specialty Fuses 350A 700V SIZE 31 Flush End Mtrc Thred

Learn More

Datasheet

1In Stock

£190.56

£165.67

View

Min.: 1
Mult.: 1

Specialty Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH M

PSR030FL0250Z
Littelfuse
1: £136.80
6In Stock

Mfr. Part No.
PSR030FL0250Z

Mouser Part No
576-PSR030FL0250Z

Littelfuse

Specialty Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH M

Learn More

Datasheet

6In Stock

£136.80

£122.53

£118.12

£105.03

Min.: 1
Mult.: 1

Specialty Fuses 400A 1250VAC SIZE 71 POWER-SPEED FLUSH M

PSR071FL0400Z
Littelfuse
1: £182.31
4In Stock

Mfr. Part No.
PSR071FL0400Z

Mouser Part No
576-PSR071FL0400Z

Littelfuse

Specialty Fuses 400A 1250VAC SIZE 71 POWER-SPEED FLUSH M

Learn More

Datasheet

4In Stock

£182.31

£180.56

Min.: 1
Mult.: 1

Specialty Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M

PSR030FL0125Z
Littelfuse
1: £136.89
9In Stock

Mfr. Part No.
PSR030FL0125Z

Mouser Part No
576-PSR030FL0125Z

Littelfuse

Specialty Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M

Learn More

Datasheet

9In Stock

£136.89

View

Min.: 1
Mult.: 1

Specialty Fuses 280A 1000V SIZE 70 Flush End Mtrc Thred

PSR070FL0280Z
Littelfuse
1: £257.52
3In Stock

Mfr. Part No.
PSR070FL0280Z

Mouser Part No
576-PSR070FL0280Z

Littelfuse

Specialty Fuses 280A 1000V SIZE 70 Flush End Mtrc Thred

Learn More

Datasheet

3In Stock

£257.52

£257.47

View

Min.: 1
Mult.: 1

Specialty Fuses 900V FAST BLOW 800A

PSR073UL0800X
Littelfuse
1: £421.77
9In Stock

Mfr. Part No.
PSR073UL0800X

Mouser Part No
576-PSR073UL0800X

Littelfuse

Specialty Fuses 900V FAST BLOW 800A

Datasheet

9In Stock

£421.77

£342.48

£315.55

Min.: 1
Mult.: 1

Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 50A

PSR070DL0050Z
Littelfuse
1: £276.31
45In Stock

Mfr. Part No.
PSR070DL0050Z

Mouser Part No
576-PSR070DL0050Z

Littelfuse

Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 50A

Learn More

Datasheet

45In Stock

£276.31

£228.97

£211.02

£198.34

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 600W 10V 5% Uni-Directional

SMBJ10A
Littelfuse
1: £0.142
26,108In Stock

Mfr. Part No.
SMBJ10A

Mouser Part No
576-SMBJ10A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 10V 5% Uni-Directional

Learn More

Datasheet

26,108In Stock

Cut Tape

£0.142

£0.115

£0.072

£0.071

£0.069

Reel

£0.057

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 12V 5% Uni-Directional

SMBJ12A
Littelfuse
1: £0.24
45,340In Stock

Mfr. Part No.
SMBJ12A

Mouser Part No
576-SMBJ12A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 12V 5% Uni-Directional

Learn More

Datasheet

45,340In Stock

Cut Tape

£0.24

£0.162

£0.078

£0.077

£0.076

Reel

£0.057

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 12V 5% Bi-Directional

SMBJ12CA
Littelfuse
1: £0.278
47,355In Stock

Mfr. Part No.
SMBJ12CA

Mouser Part No
576-SMBJ12CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 12V 5% Bi-Directional

Learn More

Datasheet

47,355In Stock

Cut Tape

£0.278

£0.188

£0.14

£0.118

Reel

£0.085

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 15V 5% Uni-Directional

SMBJ15A
Littelfuse
1: £0.18
20,020In Stock

Mfr. Part No.
SMBJ15A

Mouser Part No
576-SMBJ15A

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 15V 5% Uni-Directional

Learn More

Datasheet

20,020In Stock

Cut Tape

£0.18

£0.142

£0.088

£0.086

Reel

£0.064

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 15V 5% Bi-Directional

SMBJ15CA
Littelfuse
1: £0.24
49,312In Stock

Mfr. Part No.
SMBJ15CA

Mouser Part No
576-SMBJ15CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 15V 5% Bi-Directional

Learn More

Datasheet

49,312In Stock

Cut Tape

£0.24

£0.158

£0.089

£0.088

£0.087

Reel

£0.069

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 200V 5% Bi-Directional

SMBJ200CA
Littelfuse
1: £0.24
18,778In Stock

Mfr. Part No.
SMBJ200CA

Mouser Part No
576-SMBJ200CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 200V 5% Bi-Directional

Learn More

Datasheet

18,778In Stock

Cut Tape

£0.24

£0.156

£0.086

£0.083

£0.081

Reel

£0.072

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 20V 5% Bi-Directional

SMBJ20CA
Littelfuse
1: £0.113
20,415In Stock

Mfr. Part No.
SMBJ20CA

Mouser Part No
576-SMBJ20CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 20V 5% Bi-Directional

Learn More

Datasheet

20,415In Stock

Cut Tape

£0.113

£0.093

£0.08

Reel

£0.077

£0.069

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 220V 5% Bi-Directional

SMBJ220CA
Littelfuse
1: £0.623
27,126In Stock

Mfr. Part No.
SMBJ220CA

Mouser Part No
576-SMBJ220CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 220V 5% Bi-Directional

Learn More

Datasheet

27,126In Stock

Cut Tape

£0.623

£0.361

£0.28

£0.215

£0.195

Reel

£0.168

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 24V 5% Bi-Directional

SMBJ24CA
Littelfuse
1: £0.142
16,484In Stock
15,000Expected 19/02/2026

Mfr. Part No.
SMBJ24CA

Mouser Part No
576-SMBJ24CA

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 24V 5% Bi-Directional

Learn More

Datasheet

16,484In Stock

15,000Expected 19/02/2026

Cut Tape

£0.142

£0.125

£0.103

£0.102

£0.10

Reel

£0.069

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

High-Power Conversion

Types of Circuit Protection

Customer Service Office

Company

Resources

Support