Circuit Protection – Mouser Liechtenstein

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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 STANDARD 350V NOM

CG5350L
Littelfuse
1: CHF 2.30
808In Stock

Mfr. Part No.
CG5350L

Mouser Part No
576-CG5350L

Littelfuse

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

Datasheet

808In Stock

Cut Tape

CHF 2.30

CHF 1.76

CHF 1.46

CHF 1.35

Reel

CHF 1.24

Min.: 1
Mult.: 1

: 1’000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GDT 2T 600V

CG5600LTR
Littelfuse
1: CHF 3.01
410In Stock

Mfr. Part No.
CG5600LTR

Mouser Part No
576-CG5600LTR

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GDT 2T 600V

Datasheet

410In Stock

Cut Tape

CHF 3.01

CHF 2.13

CHF 1.72

CHF 1.58

Reel

CHF 1.34

CHF 1.30

Min.: 1
Mult.: 1

: 1’000

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

CG590LS
Littelfuse
1: CHF 1.98
778In Stock

Mfr. Part No.
CG590LS

Mouser Part No
576-CG590LS

Littelfuse

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

Datasheet

778In Stock

Cut Tape

CHF 1.98

CHF 1.52

CHF 1.26

CHF 1.17

Reel

CHF 1.05

Min.: 1
Mult.: 1

: 900

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

CG590MS
Littelfuse
1: CHF 2.76
671In Stock

Mfr. Part No.
CG590MS

Mouser Part No
576-CG590MS

Littelfuse

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

Datasheet

671In Stock

Cut Tape

CHF 2.76

CHF 1.95

CHF 1.49

CHF 1.34

Reel

CHF 1.24

MouseReel Available

Min.: 1
Mult.: 1

: 900

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF

CG690SM
Littelfuse
1: CHF 1.94
888In Stock
2’000Expected 10/29/2026

Mfr. Part No.
CG690SM

Mouser Part No
576-CG690SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V SMD Ultra Low 0.3pF

Learn More

Datasheet

888In Stock

2’000Expected 10/29/2026

Cut Tape

CHF 1.94

CHF 1.48

CHF 1.23

CHF 1.13

CHF 1.05

Reel

CHF 1.03

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V Square SG

SG200
Littelfuse
1: CHF 1.13
36In Stock
2’000On Order

Mfr. Part No.
SG200

Mouser Part No
576-SG200

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V Square SG

Datasheet

36In Stock

2’000On Order

Cut Tape

CHF 1.13

CHF 0.864

CHF 0.716

CHF 0.66

CHF 0.573

Reel

CHF 0.568

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

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

SG400
Littelfuse
1: CHF 1.08
16In Stock
4’000Expected 10/20/2026

Mfr. Part No.
SG400

Mouser Part No
576-SG400

Littelfuse

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

Learn More

Datasheet

16In Stock

4’000Expected 10/20/2026

Cut Tape

CHF 1.08

CHF 0.824

CHF 0.683

CHF 0.644

CHF 0.605

Reel

CHF 0.568

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400-600V 2A GDT T/R 2 Term

SG500Q
Littelfuse
1: CHF 1.08
1’830In Stock
2’000Expected 10/15/2026

Mfr. Part No.
SG500Q

Mouser Part No
576-SG500Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 400-600V 2A GDT T/R 2 Term

Datasheet

1’830In Stock

2’000Expected 10/15/2026

Cut Tape

CHF 1.08

CHF 0.824

CHF 0.728

Reel

CHF 0.728

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

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

SG600Q
Littelfuse
1: CHF 1.20
1’294In 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

1’294In Stock

Cut Tape

CHF 1.20

CHF 0.79

CHF 0.756

Reel

CHF 0.756

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

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

SP3002-04JTG
Littelfuse
1: CHF 0.977
3’243In Stock
54’000Expected 8/20/2026

Mfr. Part No.
SP3002-04JTG

Mouser Part No
576-SP3002-04JTG

Littelfuse

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

Datasheet

3’243In Stock

54’000Expected 8/20/2026

Cut Tape

CHF 0.977

CHF 0.464

CHF 0.409

CHF 0.316

CHF 0.301

Reel

CHF 0.259

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 5V 1uA 8kV BIDIRECTIONAL

SP3021-01ETG
Littelfuse
1: CHF 0.42
6’225In Stock
16’000On Order

Mfr. Part No.
SP3021-01ETG

Mouser Part No
576-SP3021-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 5V 1uA 8kV BIDIRECTIONAL

Learn More

Datasheet

6’225In Stock

16’000On Order

Cut Tape

CHF 0.42

CHF 0.185

CHF 0.162

CHF 0.122

View

Reel

CHF 0.094

MouseReel Available

Min.: 1
Mult.: 1

: 10’000

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

SP3031-01ETG
Littelfuse
1: CHF 0.254
2’811In Stock
150’000On Order

Mfr. Part No.
SP3031-01ETG

Mouser Part No
576-SP3031-01ETG

Littelfuse

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

Datasheet

2’811In Stock

150’000On Order

Cut Tape

CHF 0.254

CHF 0.112

CHF 0.099

CHF 0.088

Reel

CHF 0.088

MouseReel Available

Min.: 1
Mult.: 1

: 10’000

ESD Protection Diodes / TVS Diodes 4CH 15A 3.3V 3.5pF Lightning Protection

SP3312TUTG
Littelfuse
1: CHF 1.36
403In Stock
9’000On Order

Mfr. Part No.
SP3312TUTG

Mouser Part No
576-SP3312TUTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4CH 15A 3.3V 3.5pF Lightning Protection

Learn More

Datasheet

403In Stock

9’000On Order

Cut Tape

CHF 1.36

CHF 0.738

CHF 0.624

CHF 0.482

CHF 0.464

Reel

CHF 0.375

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL

SP4023-01FTG
Littelfuse
1: CHF 0.658
4’048In Stock

Mfr. Part No.
SP4023-01FTG

Mouser Part No
576-SP4023-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL

Learn More

Datasheet

4’048In Stock

Cut Tape

CHF 0.658

CHF 0.309

CHF 0.263

CHF 0.201

CHF 0.19

Reel

CHF 0.152

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

SP4042-02UTG
Littelfuse
1: CHF 3.72
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

CHF 3.72

CHF 2.46

CHF 1.73

CHF 1.53

Reel

CHF 1.53

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes ESD 6V UNI

SRV05-4HTG-D
Littelfuse
1: CHF 1.13
422In 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

422In Stock

81’000On Order

Cut Tape

CHF 1.13

CHF 0.601

CHF 0.472

CHF 0.358

CHF 0.32

Reel

CHF 0.284

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A

04611.25ER16
Littelfuse
1: CHF 1.23
961In Stock

Mfr. Part No.
04611.25ER16

Mouser Part No
576-04611.25ER16

Littelfuse

Surface Mount Fuses TELECOM NANO2 250V 16mm TAPE 1.25A

Learn More

Datasheet

961In Stock

Cut Tape

CHF 1.23

CHF 1.11

CHF 1.03

CHF 0.857

View

Reel

CHF 0.52

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

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

SG350Q
Littelfuse
1: CHF 1.13
22’000On Order

Mfr. Part No.
SG350Q

Mouser Part No
576-SG350Q

Littelfuse

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

Learn More

Datasheet

22’000On Order

Cut Tape

CHF 1.13

CHF 0.864

CHF 0.809

CHF 0.682

CHF 0.591

Reel

CHF 0.568

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

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

SP3003-08ATG
Littelfuse
1: CHF 1.12
38’542On Order

Mfr. Part No.
SP3003-08ATG

Mouser Part No
576-SP3003-08ATG

Littelfuse

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

Learn More

Datasheet

38’542On Order

Cut Tape

CHF 1.12

CHF 0.727

CHF 0.632

CHF 0.508

View

Reel

CHF 0.38

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

ESD Protection Diodes / TVS Diodes 2.5pF 30A for Surge Protection

SP4020-01FTG
Littelfuse
1: CHF 0.841
231’027On Order

Mfr. Part No.
SP4020-01FTG

Mouser Part No
576-SP4020-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2.5pF 30A for Surge Protection

Learn More

Datasheet

231’027On Order

Cut Tape

CHF 0.841

CHF 0.455

CHF 0.344

CHF 0.286

CHF 0.261

Reel

CHF 0.203

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 2.5pF 30A BI for Surge Protection

SP4020-01FTG-C
Littelfuse
1: CHF 0.888
68’982On Order

Mfr. Part No.
SP4020-01FTG-C

Mouser Part No
576-SP4020-01FTG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 2.5pF 30A BI for Surge Protection

Learn More

Datasheet

68’982On Order

Cut Tape

CHF 0.888

CHF 0.455

CHF 0.365

CHF 0.281

Reel

CHF 0.223

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 2.5pF 25A for Surge Protection

SP4021-01FTG
Littelfuse
1: CHF 0.769
100’320On Order

Mfr. Part No.
SP4021-01FTG

Mouser Part No
576-SP4021-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 2.5pF 25A for Surge Protection

Learn More

Datasheet

100’320On Order

Cut Tape

CHF 0.769

CHF 0.402

CHF 0.313

CHF 0.241

Reel

CHF 0.183

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

ESD Protection Diodes / TVS Diodes 2.5pF 25A BI for Surge Protection

SP4021-01FTG-C
Littelfuse
1: CHF 0.833
158’700On Order

Mfr. Part No.
SP4021-01FTG-C

Mouser Part No
576-SP4021-01FTG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 2.5pF 25A BI for Surge Protection

Learn More

Datasheet

158’700On Order

Cut Tape

CHF 0.833

CHF 0.414

CHF 0.338

CHF 0.261

Reel

CHF 0.203

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

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

SG150
Littelfuse
1: CHF 1.13
3’982Expected 11/24/2026

Mfr. Part No.
SG150

Mouser Part No
576-SG150

Littelfuse

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

Learn More

Datasheet

3’982Expected 11/24/2026

Cut Tape

CHF 1.13

CHF 0.864

CHF 0.728

Reel

CHF 0.728

MouseReel Available

Min.: 1
Mult.: 1

: 2’000

ESD Protection Diodes / TVS Diodes 4CH 20A 2.5V 3.5pF Lightning Protection

SP2504NUTG
Littelfuse
1: CHF 1.95
5’000Expected 10/26/2026

Mfr. Part No.
SP2504NUTG

Mouser Part No
576-SP2504NUTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4CH 20A 2.5V 3.5pF Lightning Protection

Learn More

Datasheet

5’000Expected 10/26/2026

Cut Tape

CHF 1.95

CHF 0.996

CHF 0.888

CHF 0.71

CHF 0.65

Reel

CHF 0.599

MouseReel Available

Min.: 1
Mult.: 1

: 3’000

Ethernet ESD, Lightning, & Power Fault Protection

Types of Circuit Protection

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