Circuit Protection – Mouser United Kingdom

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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.

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Types of Circuit Protection

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Results: 308

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RoHS Compliant

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Part #

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term

SG230
Littelfuse
1: £1.07
2,735In Stock

Mfr. Part No.
SG230

Mouser Part No
576-SG230

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term

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Datasheet

2,735In Stock

Cut Tape

£1.07

£0.818

£0.678

£0.625

£0.576

Reel

£0.538

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term

SG300
Littelfuse
1: £1.07
6,135In Stock
8,000Expected 24/09/2026

Mfr. Part No.
SG300

Mouser Part No
576-SG300

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term

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Datasheet

6,135In Stock

8,000Expected 24/09/2026

Cut Tape

£1.07

£0.986

£0.74

£0.627

£0.588

Reel

£0.538

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SG75
Littelfuse
1: £1.07
9,960In Stock

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

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Datasheet

9,960In Stock

Cut Tape

£1.07

£0.818

£0.69

Reel

£0.69

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: £1.07
4,398In Stock
6,000Expected 28/10/2026

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 28/10/2026

Cut Tape

£1.07

£0.818

£0.678

£0.625

£0.56

Reel

£0.538

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SL0902A090SM
Littelfuse
1: £1.71
2,924In Stock
3,600Expected 27/07/2026

Mfr. Part No.
SL0902A090SM

Mouser Part No
576-SL0902A090SM

Littelfuse

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

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Datasheet

2,924In Stock

3,600Expected 27/07/2026

Cut Tape

£1.71

£1.31

£1.15

Reel

£1.15

MouseReel Available

Min.: 1
Mult.: 1

: 900

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

SL0902A230SM
Littelfuse
1: £1.71
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

£1.71

£1.31

£1.16

£0.995

Reel

£0.899

MouseReel Available

Min.: 1
Mult.: 1

: 900

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

SP0504SHTG
Littelfuse
1: £0.728
31,810In 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

31,810In Stock

Cut Tape

£0.728

£0.453

£0.294

£0.226

£0.207

Reel

£0.207

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3002-04JTG
Littelfuse
1: £0.856
7,651In Stock

Mfr. Part No.
SP3002-04JTG

Mouser Part No
576-SP3002-04JTG

Littelfuse

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

Datasheet

7,651In Stock

Cut Tape

£0.856

£0.591

£0.388

£0.299

£0.271

Reel

£0.245

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3003-02UTG
Littelfuse
1: £0.986
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

£0.986

£0.531

£0.378

£0.335

Reel

£0.244

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3004-04XTG
Littelfuse
1: £0.934
6,676In 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

6,676In Stock

Cut Tape

£0.934

£0.536

£0.358

£0.315

Reel

£0.228

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: £0.766
13,369In 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

13,369In Stock

Cut Tape

£0.766

£0.477

£0.312

£0.24

£0.217

Reel

£0.192

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 0.35pF 20kV BIDIRECTIONAL

SP3022-01ETG
Littelfuse
1: £0.443
29,018In 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

29,018In Stock

Cut Tape

£0.443

£0.273

£0.18

£0.144

View

Reel

£0.089

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL

SP3031-01ETG
Littelfuse
1: £0.24
550In Stock
159,608On Order

Mfr. Part No.
SP3031-01ETG

Mouser Part No
576-SP3031-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 5V 1uA 10kV UNIDIRECTIONAL

Datasheet

550In Stock

159,608On Order

Cut Tape

£0.24

£0.148

£0.093

£0.083

Reel

£0.083

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

SP3118-01ETG
Littelfuse
1: £0.443
69,750In 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

69,750In Stock

Cut Tape

£0.443

£0.272

£0.175

£0.139

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

SP3374NUTG
Littelfuse
1: £1.75
5,128In 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

5,128In Stock

18,000On Order

Cut Tape

£1.75

£1.13

£0.773

£0.646

£0.622

Reel

£0.622

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3400-02UTG
Littelfuse
1: £0.803
28,194In 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

28,194In Stock

Cut Tape

£0.803

£0.458

£0.307

£0.243

£0.223

Reel

£0.188

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3422-04UTG
Littelfuse
1: £0.39
49,476In 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

49,476In Stock

Cut Tape

£0.39

£0.246

£0.157

£0.126

Reel

£0.089

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3423-02UTG
Littelfuse
1: £0.646
8,845In 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

8,845In Stock

Cut Tape

£0.646

£0.403

£0.266

£0.207

£0.189

Reel

£0.163

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3522-01ETG
Littelfuse
1: £0.308
125,093In 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

125,093In Stock

Cut Tape

£0.308

£0.196

£0.115

£0.088

View

Reel

£0.059

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: £0.292
52,383In 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

52,383In Stock

Cut Tape

£0.292

£0.18

£0.112

£0.084

View

Reel

£0.048

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

ESD Protection Diodes / TVS Diodes 1.3pF 12A BIDIRECTIONAL

SP4023-01FTG-C
Littelfuse
1: £0.705
56,726On Order

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

56,726On Order

Cut Tape

£0.705

£0.437

£0.284

£0.222

£0.208

Reel

£0.163

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4044-04ATG
Littelfuse
1: £0.759
9,025In Stock

Mfr. Part No.
SP4044-04ATG

Mouser Part No
576-SP4044-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

9,025In Stock

Cut Tape

£0.759

£0.721

£0.532

£0.458

View

Reel

£0.36

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4045-04ATG
Littelfuse
1: £0.882
9,124In Stock
8,000Expected 19/10/2026

Mfr. Part No.
SP4045-04ATG

Mouser Part No
576-SP4045-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

9,124In Stock

8,000Expected 19/10/2026

Cut Tape

£0.882

£0.651

£0.498

£0.416

View

Reel

£0.33

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

SP4060-08ATG
Littelfuse
1: £1.35
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

£1.35

£0.917

£0.609

£0.527

View

Reel

£0.434

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes ESD 6V UNI

SRV05-4HTG-D
Littelfuse
1: £0.995
11,152In Stock
45,000On 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

11,152In Stock

45,000On Order

Cut Tape

£0.995

£0.63

£0.437

£0.343

£0.308

Reel

£0.269

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ethernet ESD, Lightning, & Power Fault Protection

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