Circuit Protection – Mouser Canada

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

General Port Protection Solutions

Littelfuse General Port Protection provides a wide array of solutions for power and communication ports. Ports need protection from common electrical hazards such as lightning surges, induced power surges, power cross, electrical fast transient, electrostatic discharge, and short-circuits due to aging wires or installation errors. Littelfuse General Port Protection products are ideal for automotive, building automation, consumer electronics, and industrial applications.

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

Types of Circuit Protection

List Images

Results: 992

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 1.3pF 12A UNIDIRECTIONAL

SP4023-01FTG
Littelfuse
1: $0.721
8,004In Stock

Mfr. Part #
SP4023-01FTG

Mouser Part #
576-SP4023-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL

Learn More

Datasheet

8,004In Stock

Cut Tape

$0.721

$0.488

$0.353

$0.296

Reel

$0.241

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Thyristor Surge Protection Devices - TSPD 500A 190V

P2300SCLRP
Littelfuse
1: $2.62
2,338In Stock

Mfr. Part #
P2300SCLRP

Mouser Part #
576-P2300SCLRP

Littelfuse

Thyristor Surge Protection Devices - TSPD 500A 190V

Learn More

Datasheet

2,338In Stock

Cut Tape

$2.62

$0.875

$0.734

$0.683

Reel

$0.643

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Varistors 50V 7mm Epoxy UltraMOV

V07E50P
Littelfuse
1: $0.43
10,839In Stock

Mfr. Part #
V07E50P

Mouser Part #
576-V07E50P

Littelfuse

Varistors 50V 7mm Epoxy UltraMOV

Learn More

Datasheet

10,839In Stock

$0.43

$0.264

$0.227

$0.21

View

Min.: 1
Mult.: 1

Varistors 11V 10mm Epoxy UltraMOV

V10E11P
Littelfuse
1: $0.706
3,291In Stock

Mfr. Part #
V10E11P

Mouser Part #
576-V10E11P

Littelfuse

Varistors 11V 10mm Epoxy UltraMOV

Learn More

Datasheet

3,291In Stock

$0.706

$0.599

$0.536

$0.467

View

Min.: 1
Mult.: 1

Thyristor Surge Protection Devices - TSPD 500A 320V

P3500SCLRP
Littelfuse
1: $2.64
2,938In Stock

Mfr. Part #
P3500SCLRP

Mouser Part #
576-P3500SCLRP

Littelfuse

Thyristor Surge Protection Devices - TSPD 500A 320V

Learn More

Datasheet

2,938In Stock

Cut Tape

$2.64

$1.67

$0.83

$0.728

Reel

$0.711

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Varistors 275V 14mm Epoxy UltraMOV

V14E275PL1T
Littelfuse
1: $0.875
3,284In Stock

Mfr. Part #
V14E275PL1T

Mouser Part #
576-V14E275PL1T

Littelfuse

Varistors 275V 14mm Epoxy UltraMOV

Learn More

Datasheet

3,284In Stock

Cut Tape

$0.875

$0.614

$0.551

$0.48

Reel

$0.382

View

Min.: 1
Mult.: 1

Reel: 500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 250V 2POLE AXIAL LEADS GDT

GTCA25-251M-R02
Littelfuse
1: $4.13
726In Stock

Mfr. Part #
GTCA25-251M-R02

Mouser Part #
650-GTCA25-251M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 250V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

726In Stock

$4.13

$3.42

$3.16

$2.62

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT

GTCR36-231M-R10
Littelfuse
1: $4.67
1,042In Stock

Mfr. Part #
GTCR36-231M-R10

Mouser Part #
650-GTCR36-231M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT

Learn More

Datasheet

1,042In Stock

$4.67

$3.87

$3.58

$2.96

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT

GTCS23-750M-R01-2
Littelfuse
1: $1.73
30,731In Stock

Mfr. Part #
GTCS23-750M-R01-2

Mouser Part #
650-GTCS23-750M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT

Learn More

Datasheet

30,731In Stock

Cut Tape

$1.73

$1.46

$1.32

$1.11

View

Reel

$0.683

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Cartridge Fuses 500Vac 400Vdc TL 8A 5X20

0477008.MXP
Littelfuse
1: $3.81
12,330In Stock

Mfr. Part #
0477008.MXP

Mouser Part #
576-0477008.MXP

Littelfuse

Cartridge Fuses 500Vac 400Vdc TL 8A 5X20

Learn More

Datasheet

12,330In Stock

$3.81

$3.52

$3.35

$2.70

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 24V BI

AQ24CANA-02HTG
Littelfuse
1: $0.414
194,060In Stock

Mfr. Part #
AQ24CANA-02HTG

Mouser Part #
576-AQ24CANA-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 24V BI

Learn More

Datasheet

194,060In Stock

Cut Tape

$0.414

$0.33

$0.299

$0.293

Reel

$0.278

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 600W 2 Channel Green Asymmetrical SOT23-

SM712-02HTG
Littelfuse
1: $0.982
116,318In Stock
106,400Expected 2026-06-22

Mfr. Part #
SM712-02HTG

Mouser Part #
576-SM712-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 2 Channel Green Asymmetrical SOT23-

Learn More

Datasheet

116,318In Stock

106,400Expected 2026-06-22

Cut Tape

$0.982

$0.889

$0.689

$0.594

$0.543

Reel

$0.461

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL

SP4024-01FTG
Littelfuse
1: $0.568
414,567In Stock

Mfr. Part #
SP4024-01FTG

Mouser Part #
576-SP4024-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL

Learn More

Datasheet

414,567In Stock

Cut Tape

$0.568

$0.387

$0.373

$0.332

Reel

$0.259

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI

SPHV24-01ETG-C
Littelfuse
1: $0.307
264,510In Stock

Mfr. Part #
SPHV24-01ETG-C

Mouser Part #
576-SPHV24-01ETG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI

Learn More

Datasheet

264,510In Stock

Cut Tape

$0.307

$0.215

$0.152

$0.149

Reel

$0.138

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V SMD Ultra Low 0.3pF

CG675SM
Littelfuse
1: $4.13
1,477In Stock

Mfr. Part #
CG675SM

Mouser Part #
576-CG675SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V SMD Ultra Low 0.3pF

Learn More

Datasheet

1,477In Stock

Cut Tape

$4.13

$3.44

$3.16

$2.62

View

Reel

$1.81

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 75V NOM

CG75L
Littelfuse
1: $4.53
1,001In Stock
1,050Expected 2026-04-17

Mfr. Part #
CG75L

Mouser Part #
576-CG75L

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 75V NOM

Datasheet

1,001In Stock

1,050Expected 2026-04-17

$4.53

$3.55

$3.28

$3.04

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM

CG90LTR
Littelfuse
1: $5.63
1,499In Stock
1,000Expected 2026-02-23

Mfr. Part #
CG90LTR

Mouser Part #
576-CG90LTR

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V NOM

Datasheet

1,499In Stock

1,000Expected 2026-02-23

Cut Tape

$5.63

$4.45

$4.24

$3.58

View

Reel

$2.47

Min.: 1
Mult.: 1

Reel: 500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V MS

CG90MS
Littelfuse
1: $4.96
3,288In Stock

Mfr. Part #
CG90MS

Mouser Part #
576-CG90MS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 90V MS

Datasheet

3,288In Stock

Cut Tape

$4.96

$4.57

$4.22

$3.47

View

Reel

$2.47

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact

LC03-3.3BTG
Littelfuse
1: $2.52
2,087In Stock
15,000On Order

Mfr. Part #
LC03-3.3BTG

Mouser Part #
576-LC03-3.3BTG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V 1uA 30kV ESD Contact

Learn More

Datasheet

2,087In Stock

15,000On Order

Cut Tape

$2.52

$2.13

$1.90

$1.84

Reel

$1.57

$1.55

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

SG150
Littelfuse
1: $2.29
2,816In Stock

Mfr. Part #
SG150

Mouser Part #
576-SG150

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

Learn More

Datasheet

2,816In Stock

Cut Tape

$2.29

$1.90

$1.77

$1.45

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

SG350Q
Littelfuse
1: $2.35
3,009In Stock
4,000Expected 2026-05-21

Mfr. Part #
SG350Q

Mouser Part #
576-SG350Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

Learn More

Datasheet

3,009In Stock

4,000Expected 2026-05-21

Cut Tape

$2.35

$1.95

$1.81

$1.49

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term

SG400
Littelfuse
1: $2.47
2,831In Stock

Mfr. Part #
SG400

Mouser Part #
576-SG400

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term

Learn More

Datasheet

2,831In Stock

Cut Tape

$2.47

$2.06

$1.89

$1.57

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term

SG420
Littelfuse
1: $1.92
2,600In Stock

Mfr. Part #
SG420

Mouser Part #
576-SG420

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term

Learn More

Datasheet

2,600In Stock

Cut Tape

$1.92

$1.64

$1.53

$1.30

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 52-98V 2A GDT T/R 2 Term

SG75
Littelfuse
1: $2.10
8,904In Stock

Mfr. Part #
SG75

Mouser Part #
576-SG75

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 52-98V 2A GDT T/R 2 Term

Learn More

Datasheet

8,904In Stock

Cut Tape

$2.10

$1.83

$1.70

$1.53

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term

SG90
Littelfuse
1: $2.01
2,334In Stock
6,000Expected 2026-02-23

Mfr. Part #
SG90

Mouser Part #
576-SG90

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term

Learn More

Datasheet

2,334In Stock

6,000Expected 2026-02-23

Cut Tape

$2.01

$1.78

$1.66

$1.40

View

Reel

$0.999

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

General Port Protection Solutions

Types of Circuit Protection

Mouser Electronics®

Company

Resources

Support