Circuit Protection – Mouser South Africa

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

Ethernet ESD, Lightning, & Power Fault Protection

Littelfuse Ethernet/PoE ESD, EFT, Lightning, and Power Fault Protection ensures that the power fault overcurrent can be protected with Telelink fuses. The Ethernet Power Fault Protection includes the SMCJ and SP40 TVS Diode, SP3, SRV05xx, LC03xx, and SP40xx Diode Array, and the 0461xxx Fuse series. Littelfuse Ethernet/PoE ESD, EFT, Lightning, and Power Fault Protection products meet various applicable standards.

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

Types of Circuit Protection

List Images

Results: 308

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 #

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

SG75
Littelfuse
1: $1.43
6,790In Stock
8,000Expected 2026/12/08

Mfr. Part No.
SG75

Mouser Part No
576-SG75

Littelfuse

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

Learn More

Datasheet

6,790In Stock

8,000Expected 2026/12/08

Cut Tape

$1.43

$1.09

$0.919

Reel

$0.919

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SG90
Littelfuse
1: $1.43
4,398In Stock
6,000Expected 2026/10/28

Mfr. Part No.
SG90

Mouser Part No
576-SG90

Littelfuse

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

Learn More

Datasheet

4,398In Stock

6,000Expected 2026/10/28

Cut Tape

$1.43

$1.09

$0.904

$0.833

$0.745

Reel

$0.716

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term

SL0902A090SM
Littelfuse
1: $2.28
6,320In Stock

Mfr. Part No.
SL0902A090SM

Mouser Part No
576-SL0902A090SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 90V Minitube 2 Term

Learn More

Datasheet

6,320In Stock

Cut Tape

$2.28

$1.74

$1.54

Reel

$1.54

MouseReel Available

Min.: 1
Mult.: 1

: 900

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term

SL0902A230SM
Littelfuse
1: $2.28
3,521In Stock

Mfr. Part No.
SL0902A230SM

Mouser Part No
576-SL0902A230SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP 5X5 230V Minitube 2 Term

Learn More

Datasheet

3,521In Stock

Cut Tape

$2.28

$1.74

$1.55

$1.33

Reel

$1.20

MouseReel Available

Min.: 1
Mult.: 1

: 900

ESD Protection Diodes / TVS Diodes 4 Ch 12kV 5V TVS Diode Array

SP0504SHTG
Littelfuse
1: $0.97
31,428In Stock

Mfr. Part No.
SP0504SHTG

Mouser Part No
576-SP0504SHTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 Ch 12kV 5V TVS Diode Array

Learn More

Datasheet

31,428In Stock

Cut Tape

$0.97

$0.604

$0.392

$0.301

$0.276

Reel

$0.276

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 75A 30KV 3.3V Lightning Protection

SP2502LBTG
Littelfuse
1: $3.13
3,870In Stock

Mfr. Part No.
SP2502LBTG

Mouser Part No
576-SP2502LBTG

Littelfuse

ESD Protection Diodes / TVS Diodes 75A 30KV 3.3V Lightning Protection

Learn More

Datasheet

3,870In Stock

Cut Tape

$3.13

$1.92

$1.40

$1.16

$1.07

Reel

$0.963

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 4 channels 1.1pF 15kV

SP3002-04JTG
Littelfuse
1: $1.14
7,493In Stock
54,000Expected 2026/12/21

Mfr. Part No.
SP3002-04JTG

Mouser Part No
576-SP3002-04JTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 channels 1.1pF 15kV

Datasheet

7,493In Stock

54,000Expected 2026/12/21

Cut Tape

$1.14

$0.787

$0.516

$0.399

$0.361

Reel

$0.327

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap

SP3003-02UTG
Littelfuse
1: $1.40
11,180In Stock

Mfr. Part No.
SP3003-02UTG

Mouser Part No
576-SP3003-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2 Ch 8KV 5V .65pF Low Cap

Learn More

Datasheet

11,180In Stock

Cut Tape

$1.40

$0.806

$0.575

$0.447

Reel

$0.324

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630

SP3004-04XTG
Littelfuse
1: $1.31
6,596In Stock

Mfr. Part No.
SP3004-04XTG

Mouser Part No
576-SP3004-04XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 Ch, 12kV, 0.85pF SOT5630

Datasheet

6,596In Stock

Cut Tape

$1.31

$0.757

$0.54

$0.42

Reel

$0.297

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 0.3pF SOT23-6L 4 Ch Diode Array

SP3019-04HTG
Littelfuse
1: $1.02
13,259In Stock

Mfr. Part No.
SP3019-04HTG

Mouser Part No
576-SP3019-04HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.3pF SOT23-6L 4 Ch Diode Array

Learn More

Datasheet

13,259In Stock

Cut Tape

$1.02

$0.635

$0.415

$0.32

$0.29

Reel

$0.256

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL

SP3022-01ETG
Littelfuse
1: $0.59
28,856In Stock

Mfr. Part No.
SP3022-01ETG

Mouser Part No
576-SP3022-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL

Learn More

Datasheet

28,856In Stock

Cut Tape

$0.59

$0.364

$0.24

$0.192

View

Reel

$0.119

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820

SP3118-01ETG
Littelfuse
1: $0.59
67,521In Stock

Mfr. Part No.
SP3118-01ETG

Mouser Part No
576-SP3118-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes .3pF 10KV 18V SOD8820

Learn More

Datasheet

67,521In Stock

Cut Tape

$0.59

$0.368

$0.236

$0.188

View

Reel

$0.109

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 3.3V 40A AEC-Q101

SP3374NUTG
Littelfuse
1: $2.47
3,155In Stock
18,000On Order

Mfr. Part No.
SP3374NUTG

Mouser Part No
576-SP3374NUTG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V 40A AEC-Q101

Learn More

Datasheet

3,155In Stock

18,000On Order

Cut Tape

$2.47

$1.44

$1.08

$0.861

$0.828

Reel

$0.828

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array

SP3400-02UTG
Littelfuse
1: $1.07
28,044In Stock

Mfr. Part No.
SP3400-02UTG

Mouser Part No
576-SP3400-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array

Learn More

Datasheet

28,044In Stock

Cut Tape

$1.07

$0.611

$0.409

$0.323

$0.297

Reel

$0.25

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5

SP3422-04UTG
Littelfuse
1: $0.52
49,384In Stock

Mfr. Part No.
SP3422-04UTG

Mouser Part No
576-SP3422-04UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 0.2pF 22kV DFN-5

Learn More

Datasheet

49,384In Stock

Cut Tape

$0.52

$0.328

$0.209

$0.167

Reel

$0.119

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 2CH 5V 2A 0.2pF

SP3423-02UTG
Littelfuse
1: $0.87
8,818In Stock

Mfr. Part No.
SP3423-02UTG

Mouser Part No
576-SP3423-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2CH 5V 2A 0.2pF

Learn More

Datasheet

8,818In Stock

Cut Tape

$0.87

$0.547

$0.364

$0.285

$0.261

Reel

$0.217

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF SOD882

SP3522-01ETG
Littelfuse
1: $0.411
119,093In Stock

Mfr. Part No.
SP3522-01ETG

Mouser Part No
576-SP3522-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF SOD882

Learn More

Datasheet

119,093In Stock

Cut Tape

$0.411

$0.262

$0.154

$0.117

View

Reel

$0.079

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN

SP3522-01UTG
Littelfuse
1: $0.39
42,373In Stock

Mfr. Part No.
SP3522-01UTG

Mouser Part No
576-SP3522-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 9.2V .15pF 0201 DFN

Learn More

Datasheet

42,373In Stock

Cut Tape

$0.39

$0.24

$0.149

$0.112

View

Reel

$0.064

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL

SP4022-01FTG-C
Littelfuse
1: $0.911
83,539In Stock
57,000Expected 2026/09/28

Mfr. Part No.
SP4022-01FTG-C

Mouser Part No
576-SP4022-01FTG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL

Learn More

Datasheet

83,539In Stock

57,000Expected 2026/09/28

Cut Tape

$0.911

$0.561

$0.364

$0.29

$0.261

Reel

$0.217

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL

SP4023-01FTG-C
Littelfuse
1: $0.72
19,944In Stock
36,000Expected 2026/11/09

Mfr. Part No.
SP4023-01FTG-C

Mouser Part No
576-SP4023-01FTG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL

Learn More

Datasheet

19,944In Stock

36,000Expected 2026/11/09

Cut Tape

$0.72

$0.543

$0.352

$0.295

$0.266

Reel

$0.217

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4044-04ATG
Littelfuse
1: $1.34
8,775In Stock

Mfr. Part No.
SP4044-04ATG

Mouser Part No
576-SP4044-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

8,775In Stock

Cut Tape

$1.34

$1.01

$0.733

$0.604

View

Reel

$0.479

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4045-04ATG
Littelfuse
1: $1.24
8,924In Stock
8,000Expected 2026/10/05

Mfr. Part No.
SP4045-04ATG

Mouser Part No
576-SP4045-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

8,924In Stock

8,000Expected 2026/10/05

Cut Tape

$1.24

$0.913

$0.676

$0.562

View

Reel

$0.44

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 8 Ch 30kV 2.5V 4.4pF

SP4060-08ATG
Littelfuse
1: $1.80
4,872In Stock

Mfr. Part No.
SP4060-08ATG

Mouser Part No
576-SP4060-08ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 8 Ch 30kV 2.5V 4.4pF

Learn More

Datasheet

4,872In Stock

Cut Tape

$1.80

$1.15

$0.861

$0.75

View

Reel

$0.578

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes ESD 6V UNI

SRV05-4HTG-D
Littelfuse
1: $1.33
1,692In Stock
81,000On Order

Mfr. Part No.
SRV05-4HTG-D

Mouser Part No
576-SRV05-4HTG-D

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 6V UNI

Learn More

Datasheet

1,692In Stock

81,000On Order

Cut Tape

$1.33

$0.84

$0.582

$0.457

$0.411

Reel

$0.358

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 4 channels .65pF

SP3003-04XTG
Littelfuse
1: $1.27
1,596In Stock
9,000Expected 2026/09/29

Mfr. Part No.
SP3003-04XTG

Mouser Part No
576-SP3003-04XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 channels .65pF

Learn More

Datasheet

1,596In Stock

9,000Expected 2026/09/29

Cut Tape

$1.27

$0.798

$0.525

$0.438

Reel

$0.32

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ethernet ESD, Lightning, & Power Fault Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support