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 #

ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL

SP4024-01FTG
Littelfuse
1: £0.608
404,918In Stock

Mfr. Part No.
SP4024-01FTG

Mouser Part No
576-SP4024-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 7A UNIDIRECTIONAL

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Datasheet

404,918In Stock

Cut Tape

£0.608

£0.378

£0.241

£0.184

£0.165

Reel

£0.144

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

SP4042-02UTG
Littelfuse
1: £3.53
6,383In Stock
6,000Expected 14/09/2026

Mfr. Part No.
SP4042-02UTG

Mouser Part No
576-SP4042-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

Learn More

Datasheet

6,383In Stock

6,000Expected 14/09/2026

Cut Tape

£3.53

£2.33

£1.64

£1.45

Reel

£1.45

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 450-750V 2A GDT T/R 2 Term

SG600Q
Littelfuse
1: £1.13
2,306In Stock

Mfr. Part No.
SG600Q

Mouser Part No
576-SG600Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 450-750V 2A GDT T/R 2 Term

Datasheet

2,306In Stock

Cut Tape

£1.13

£0.748

£0.716

Reel

£0.716

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V SOD8820

SP3130-01ETG
Littelfuse
1: £0.375
17,007In Stock

Mfr. Part No.
SP3130-01ETG

Mouser Part No
576-SP3130-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V SOD8820

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Datasheet

17,007In Stock

Cut Tape

£0.375

£0.223

£0.145

£0.121

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA

SP3003-04ATG
Littelfuse
1: £1.20
5,100In Stock

Mfr. Part No.
SP3003-04ATG

Mouser Part No
576-SP3003-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA

Learn More

Datasheet

5,100In Stock

Cut Tape

£1.20

£0.871

£0.687

£0.603

£0.47

Reel

£0.47

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

CG590L
Littelfuse
1: £2.17
3,474In Stock

Mfr. Part No.
CG590L

Mouser Part No
576-CG590L

Littelfuse

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

Datasheet

3,474In Stock

Cut Tape

£2.17

£1.67

£1.38

£1.27

Reel

£1.07

Min.: 1
Mult.: 1

: 1,000

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

SG420
Littelfuse
1: £1.07
2,595In Stock

Mfr. Part No.
SG420

Mouser Part No
576-SG420

Littelfuse

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

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Datasheet

2,595In Stock

Cut Tape

£1.07

£0.746

£0.582

£0.526

£0.501

Reel

£0.489

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip

SP3118-01WTG
Littelfuse
1: £0.30
10,972In Stock

Mfr. Part No.
SP3118-01WTG

Mouser Part No
576-SP3118-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes .3pF 10KV 18V 0201 Flipchip

Learn More

Datasheet

10,972In Stock

Cut Tape

£0.30

£0.19

£0.132

£0.109

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V

CG590LS
Littelfuse
1: £1.88
889In Stock

Mfr. Part No.
CG590LS

Mouser Part No
576-CG590LS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN 90V

Datasheet

889In Stock

Cut Tape

£1.88

£1.44

£1.20

£1.11

Reel

£0.917

£0.908

Min.: 1
Mult.: 1

: 900

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN

SP3530-01UTG
Littelfuse
1: £0.196
13,860In Stock

Mfr. Part No.
SP3530-01UTG

Mouser Part No
576-SP3530-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 22kV 8.2V .3pF UNI 0201 DFN

Learn More

Datasheet

13,860In Stock

Cut Tape

£0.196

£0.12

£0.071

£0.057

£0.045

Reel

£0.045

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV

SP3001-04JTG
Littelfuse
1: £0.934
96,907In Stock

Mfr. Part No.
SP3001-04JTG

Mouser Part No
576-SP3001-04JTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 channels .65pF 8kV

Datasheet

96,907In Stock

Cut Tape

£0.934

£0.584

£0.383

£0.299

Reel

£0.234

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2

0461002.ER
Littelfuse
1: £1.53
27,979In Stock

Mfr. Part No.
0461002.ER

Mouser Part No
576-0461002.ER

Littelfuse

Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2

Learn More

Datasheet

27,979In Stock

Cut Tape

£1.53

£1.37

£1.22

£1.05

View

Reel

£0.766

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2

04611.25ER
Littelfuse
1: £1.50
23,270In Stock
17,500Expected 19/10/2026

Mfr. Part No.
04611.25ER

Mouser Part No
576-04611.25ER

Littelfuse

Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2

Learn More

Datasheet

23,270In Stock

17,500Expected 19/10/2026

Cut Tape

£1.50

£1.34

£1.13

£0.978

View

Reel

£0.476

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

SP3002-04JTG
Littelfuse
1: £0.943
58,781In Stock

Mfr. Part No.
SP3002-04JTG

Mouser Part No
576-SP3002-04JTG

Littelfuse

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

Datasheet

58,781In Stock

Cut Tape

£0.943

£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 0.65pF SPA

SP3003-02JTG
Littelfuse
1: £0.969
22,754In Stock

Mfr. Part No.
SP3003-02JTG

Mouser Part No
576-SP3003-02JTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2 Ch 8kV 0.65pF SPA

Learn More

Datasheet

22,754In Stock

Cut Tape

£0.969

£0.628

£0.443

£0.387

£0.351

Reel

£0.275

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 2 channels .65pF

SP3003-02XTG
Littelfuse
1: £0.899
6,000In Stock
45,000On Order

Mfr. Part No.
SP3003-02XTG

Mouser Part No
576-SP3003-02XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2 channels .65pF

Learn More

Datasheet

6,000In Stock

45,000On Order

Cut Tape

£0.899

£0.711

£0.513

£0.414

£0.366

Reel

£0.323

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA

SP3003-04JTG
Littelfuse
1: £0.952
9,228In Stock

Mfr. Part No.
SP3003-04JTG

Mouser Part No
576-SP3003-04JTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 Ch 8kV 0.65pF SPA

Learn More

Datasheet

9,228In Stock

Cut Tape

£0.952

£0.596

£0.392

£0.306

£0.276

Reel

£0.211

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 4 channels .65pF

SP3003-04XTG
Littelfuse
1: £0.952
7,991In Stock

Mfr. Part No.
SP3003-04XTG

Mouser Part No
576-SP3003-04XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 channels .65pF

Learn More

Datasheet

7,991In Stock

Cut Tape

£0.952

£0.599

£0.394

£0.329

Reel

£0.24

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip

SP3130-01WTG
Littelfuse
1: £0.405
36,804In Stock

Mfr. Part No.
SP3130-01WTG

Mouser Part No
576-SP3130-01WTG

Littelfuse

ESD Protection Diodes / TVS Diodes .3pF 10KV 28V 0201 Flipchip

Learn More

Datasheet

36,804In Stock

Cut Tape

£0.405

£0.252

£0.164

£0.134

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2

0461.500ER
Littelfuse
1: £1.84
9,223In Stock

Mfr. Part No.
0461.500ER

Mouser Part No
576-0461.500ER

Littelfuse

Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2

Learn More

Datasheet

9,223In Stock

Cut Tape

£1.84

£1.68

£1.48

£1.25

£1.10

Reel

£1.10

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM

CG5350L
Littelfuse
1: £2.17
1,509In Stock

Mfr. Part No.
CG5350L

Mouser Part No
576-CG5350L

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD 350V NOM

Datasheet

1,509In Stock

Cut Tape

£2.17

£1.67

£1.38

£1.27

Reel

£1.18

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL

CG5600L
Littelfuse
1: £1.88
1,223In Stock

Mfr. Part No.
CG5600L

Mouser Part No
576-CG5600L

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 600V NOMINAL

Datasheet

1,223In Stock

Cut Tape

£1.88

£1.44

£1.20

£1.10

Reel

£0.995

Min.: 1
Mult.: 1

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD

CG590LTR
Littelfuse
1: £2.03
1,113In Stock

Mfr. Part No.
CG590LTR

Mouser Part No
576-CG590LTR

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V NOMINAL GP S.A. STANDARD

Datasheet

1,113In Stock

Cut Tape

£2.03

£1.55

£1.29

£1.19

Reel

£1.09

Min.: 1
Mult.: 1

: 1,000

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

SG230
Littelfuse
1: £1.28
2,777In 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

Learn More

Datasheet

2,777In Stock

Cut Tape

£1.28

£0.986

£0.766

£0.646

£0.56

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

Learn More

Datasheet

6,135In Stock

8,000Expected 24/09/2026

Cut Tape

£1.07

£0.986

£0.766

£0.646

£0.588

Reel

£0.538

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Ethernet ESD, Lightning, & Power Fault Protection

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