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
403,168In 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

403,168In 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 .3pF 10KV 28V 0201 Flipchip

SP3130-01WTG
Littelfuse
1: £0.263
36,774In Stock

Mfr. Part No.
SP3130-01WTG

Mouser Part No
576-SP3130-01WTG

Littelfuse

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

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Datasheet

36,774In Stock

Cut Tape

£0.263

£0.174

£0.126

£0.105

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional

SMCJ150CA-HRAT7
Littelfuse
1: £16.43
319In Stock

Mfr. Part No.
SMCJ150CA-HRAT7

Mouser Part No
576-SMCJ150CA-HRAT7

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 150V Hi Rel 5% Bi-Directional

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Datasheet

319In Stock

Cut Tape

£16.43

£14.18

£12.13

Reel

£12.13

Quote

MouseReel Available

Min.: 1
Mult.: 1

: 500

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

SG420
Littelfuse
1: £0.698
2,545In 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

2,545In Stock

Cut Tape

£0.698

£0.574

£0.507

£0.489

Reel

£0.489

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SP3003-04ATG
Littelfuse
1: £1.14
5,030In Stock

Mfr. Part No.
SP3003-04ATG

Mouser Part No
576-SP3003-04ATG

Littelfuse

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

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Datasheet

5,030In Stock

Cut Tape

£1.14

£0.856

£0.687

£0.604

£0.47

Reel

£0.47

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

SP3130-01ETG
Littelfuse
1: £0.338
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

£0.338

£0.196

£0.13

£0.11

View

Reel

£0.082

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

CG590L
Littelfuse
1: £2.17
3,469In Stock

Mfr. Part No.
CG590L

Mouser Part No
576-CG590L

Littelfuse

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

Datasheet

3,469In Stock

Cut Tape

£2.17

£1.67

£1.38

£1.27

Reel

£1.07

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

SP4042-02UTG
Littelfuse
1: £3.53
83In Stock
12,000On Order

Mfr. Part No.
SP4042-02UTG

Mouser Part No
576-SP4042-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

Learn More

Datasheet

83In Stock

12,000On Order

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 263-437V 2A GDT T/R 2 Term

SG350
Littelfuse
1: £1.07
2,000In Stock

Mfr. Part No.
SG350

Mouser Part No
576-SG350

Littelfuse

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

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Datasheet

2,000In Stock

Cut Tape

£1.07

£0.818

£0.678

£0.638

Reel

£0.503

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SP3530-01UTG
Littelfuse
1: £0.18
13,760In 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

13,760In Stock

Cut Tape

£0.18

£0.11

£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
63,443In Stock

Mfr. Part No.
SP3001-04JTG

Mouser Part No
576-SP3001-04JTG

Littelfuse

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

Datasheet

63,443In Stock

Cut Tape

£0.934

£0.584

£0.383

£0.299

Reel

£0.234

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 2 channels .65pF

SP3003-02XTG
Littelfuse
1: £0.811
21,522In Stock
21,000Expected 27/07/2026

Mfr. Part No.
SP3003-02XTG

Mouser Part No
576-SP3003-02XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2 channels .65pF

Learn More

Datasheet

21,522In Stock

21,000Expected 27/07/2026

Cut Tape

£0.811

£0.655

£0.509

£0.407

£0.357

Reel

£0.323

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

0461002.ER
Littelfuse
1: £1.46
27,324In Stock

Mfr. Part No.
0461002.ER

Mouser Part No
576-0461002.ER

Littelfuse

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

Learn More

Datasheet

27,324In Stock

Cut Tape

£1.46

£1.31

£1.19

£1.00

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: £1.48
18,356In Stock
16,900On Order

Mfr. Part No.
04611.25ER

Mouser Part No
576-04611.25ER

Littelfuse

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

Learn More

Datasheet

18,356In Stock

16,900On Order

Cut Tape

£1.48

£1.32

£1.11

£0.96

View

Reel

£0.533

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

LC03-3.3BTG
Littelfuse
1: £2.52
8,683In Stock
46,729Expected 31/07/2026

Mfr. Part No.
LC03-3.3BTG

Mouser Part No
576-LC03-3.3BTG

Littelfuse

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

Learn More

Datasheet

8,683In Stock

46,729Expected 31/07/2026

Cut Tape

£2.52

£1.64

£1.23

£1.00

£0.969

Reel

£0.969

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

ESD Protection Diodes / TVS Diodes 6 Ch 8kV 6V 0.4 pF

SP3011-06UTG
Littelfuse
1: £0.863
21,325In Stock
15,000Expected 27/07/2026

Mfr. Part No.
SP3011-06UTG

Mouser Part No
576-SP3011-06UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 6 Ch 8kV 6V 0.4 pF

Datasheet

21,325In Stock

15,000Expected 27/07/2026

Cut Tape

£0.863

£0.698

£0.526

£0.433

Reel

£0.347

View

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
16,189In Stock
15,000Expected 10/11/2026

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

16,189In Stock

15,000Expected 10/11/2026

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 4 Ch 8kV 0.65pF SPA

SP3003-04JTG
Littelfuse
1: £0.952
8,868In 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

8,868In Stock

Cut Tape

£0.952

£0.598

£0.394

£0.306

£0.277

Reel

£0.211

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

0461.500ER
Littelfuse
1: £1.84
9,087In 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

9,087In 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
1,308In Stock

Mfr. Part No.
CG5350L

Mouser Part No
576-CG5350L

Littelfuse

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

Datasheet

1,308In 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
1,221In 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

1,221In 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
1,013In 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

1,013In 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 230V SMD Ultra Low 0.3pF

CG6230SM
Littelfuse
1: £1.65
1,897In Stock

Mfr. Part No.
CG6230SM

Mouser Part No
576-CG6230SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V SMD Ultra Low 0.3pF

Learn More

Datasheet

1,897In Stock

Cut Tape

£1.65

£1.52

£1.05

£0.978

Reel

£0.978

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

CG675SM
Littelfuse
1: £1.83
1,903In Stock
2,000Expected 27/07/2026

Mfr. Part No.
CG675SM

Mouser Part No
576-CG675SM

Littelfuse

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

Learn More

Datasheet

1,903In Stock

2,000Expected 27/07/2026

Cut Tape

£1.83

£1.41

£1.16

£1.07

£0.995

Reel

£0.978

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

Learn More

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

Ethernet ESD, Lightning, & Power Fault Protection

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