Circuit Protection – Mouser Korea, Republic of

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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 3.3V Diode Array

SP4042-02UTG
Littelfuse
1: ₩7,160.4
6,083In Stock
6,000Expected 11/2/2026

Mfr. Part #
SP4042-02UTG

Mouser Part #
576-SP4042-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V Diode Array

Learn More

Datasheet

6,083In Stock

6,000Expected 11/2/2026

Cut Tape

₩7,160.4

₩3,900

₩3,463.2

₩2,995.2

₩2,761.2

Reel

₩2,293.2

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4044-04ATG
Littelfuse
1: ₩1,981.2
8,686In Stock

Mfr. Part #
SP4044-04ATG

Mouser Part #
576-SP4044-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

8,686In Stock

Cut Tape

₩1,981.2

₩1,363.4

₩1,121.6

₩929.8

View

Reel

₩653.6

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

SP4045-04ATG
Littelfuse
1: ₩1,918.8
8,907In Stock
8,000Expected 8/27/2026

Mfr. Part #
SP4045-04ATG

Mouser Part #
576-SP4045-04ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5pF 30kV

Learn More

Datasheet

8,907In Stock

8,000Expected 8/27/2026

Cut Tape

₩1,918.8

₩1,279.2

₩1,039

₩865.8

Reel

₩602.2

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

SP4060-08ATG
Littelfuse
1: ₩2,808
3,802In Stock

Mfr. Part #
SP4060-08ATG

Mouser Part #
576-SP4060-08ATG

Littelfuse

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

Learn More

Datasheet

3,802In Stock

Cut Tape

₩2,808

₩1,622.4

₩1,294.8

₩1,110.7

Reel

₩839.3

View

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

ESD Protection Diodes / TVS Diodes 4 channels .65pF

SP3003-04XTG
Littelfuse
1: ₩2,028
490In Stock
9,000Expected 9/3/2026

Mfr. Part #
SP3003-04XTG

Mouser Part #
576-SP3003-04XTG

Littelfuse

ESD Protection Diodes / TVS Diodes 4 channels .65pF

Learn More

Datasheet

490In Stock

9,000Expected 9/3/2026

Cut Tape

₩2,028

₩968.8

₩836.2

₩652.1

₩617.8

Reel

₩480.5

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP3118-01WTG
Littelfuse
1: ₩889.2
9,211In Stock

Mfr. Part #
SP3118-01WTG

Mouser Part #
576-SP3118-01WTG

Littelfuse

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

Learn More

Datasheet

9,211In Stock

Cut Tape

₩889.2

₩443

₩352.6

₩280.8

View

Reel

₩170

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS

CG5230MS
Littelfuse
1: ₩4,071.6
371In Stock

Mfr. Part #
CG5230MS

Mouser Part #
576-CG5230MS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP BIPOLAR SURGE ARRESTOR MS

Datasheet

371In Stock

Cut Tape

₩4,071.6

₩3,120

₩2,636.4

₩2,589.6

Reel

₩2,464.8

MouseReel Available

Min.: 1
Mult.: 1

: 900

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

CG5350L
Littelfuse
1: ₩4,524
808In Stock

Mfr. Part #
CG5350L

Mouser Part #
576-CG5350L

Littelfuse

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

Datasheet

808In Stock

Cut Tape

₩4,524

₩3,463.2

₩2,870.4

₩2,652

Reel

₩2,449.2

Min.: 1
Mult.: 1

: 1,000

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

CG5600LTR
Littelfuse
1: ₩5,928
410In Stock

Mfr. Part #
CG5600LTR

Mouser Part #
576-CG5600LTR

Littelfuse

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

Datasheet

410In Stock

Cut Tape

₩5,928

₩4,196.4

₩3,385.2

₩3,104.4

Reel

₩2,636.4

₩2,558.4

Min.: 1
Mult.: 1

: 1,000

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

CG590LS
Littelfuse
1: ₩3,900
778In Stock

Mfr. Part #
CG590LS

Mouser Part #
576-CG590LS

Littelfuse

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

Datasheet

778In Stock

Cut Tape

₩3,900

₩2,995.2

₩2,480.4

₩2,308.8

Reel

₩2,074.8

Min.: 1
Mult.: 1

: 900

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

CG590MS
Littelfuse
1: ₩5,428.8
671In Stock

Mfr. Part #
CG590MS

Mouser Part #
576-CG590MS

Littelfuse

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

Datasheet

671In Stock

Cut Tape

₩5,428.8

₩3,822

₩2,932.8

₩2,636.4

Reel

₩2,449.2

MouseReel Available

Min.: 1
Mult.: 1

: 900

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

SG400
Littelfuse
1: ₩2,121.6
16In Stock
4,000Expected 10/20/2026

Mfr. Part #
SG400

Mouser Part #
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

₩2,121.6

₩1,622.4

₩1,344.7

₩1,266.7

₩1,162.2

Reel

₩1,117

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: ₩2,121.6
1,830In Stock
2,000Expected 10/15/2026

Mfr. Part #
SG500Q

Mouser Part #
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

₩2,121.6

₩1,622.4

₩1,344.7

₩1,266.7

₩1,162.2

Reel

₩1,117

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: ₩2,355.6
1,294In Stock

Mfr. Part #
SG600Q

Mouser Part #
576-SG600Q

Littelfuse

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

Datasheet

1,294In Stock

Cut Tape

₩2,355.6

₩1,555.3

₩1,296.4

₩1,244.9

₩1,127.9

Reel

₩1,117

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SP3031-01ETG
Littelfuse
1: ₩499.2
2,680In Stock
150,000On Order

Mfr. Part #
SP3031-01ETG

Mouser Part #
576-SP3031-01ETG

Littelfuse

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

Datasheet

2,680In Stock

150,000On Order

Cut Tape

₩499.2

₩221.5

₩193.4

₩173.2

Reel

₩173.2

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL

SP4023-01FTG
Littelfuse
1: ₩1,294.8
3,531In Stock
3,000Expected 4/28/2027

Mfr. Part #
SP4023-01FTG

Mouser Part #
576-SP4023-01FTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 12A UNIDIRECTIONAL

Learn More

Datasheet

3,531In Stock

3,000Expected 4/28/2027

Cut Tape

₩1,294.8

₩606.8

₩514.8

₩393.1

Reel

₩262.1

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes ESD 6V UNI

SRV05-4HTG-D
Littelfuse
1: ₩2,230.8
363In Stock
81,000On Order

Mfr. Part #
SRV05-4HTG-D

Mouser Part #
576-SRV05-4HTG-D

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 6V UNI

Learn More

Datasheet

363In Stock

81,000On Order

Cut Tape

₩2,230.8

₩1,237.1

₩928.2

₩723.8

₩647.4

Reel

₩532

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

04611.25ER16
Littelfuse
1: ₩2,418
961In Stock

Mfr. Part #
04611.25ER16

Mouser Part #
576-04611.25ER16

Littelfuse

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

Learn More

Datasheet

961In Stock

Cut Tape

₩2,418

₩2,168.4

₩2,028

₩1,684.8

View

Reel

₩1,023.4

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

SP3003-08ATG
Littelfuse
1: ₩2,215.2
55,362On Order

Mfr. Part #
SP3003-08ATG

Mouser Part #
576-SP3003-08ATG

Littelfuse

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

Learn More

Datasheet

55,362On Order

Cut Tape

₩2,215.2

₩1,429

₩1,241.8

₩1,000

View

Reel

₩694.2

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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

SP4020-01FTG
Littelfuse
1: ₩1,638
224,732On Order

Mfr. Part #
SP4020-01FTG

Mouser Part #
576-SP4020-01FTG

Littelfuse

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

Learn More

Datasheet

224,732On Order

Cut Tape

₩1,638

₩893.9

₩666.1

₩513.2

Reel

₩358.8

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: ₩1,747.2
68,982On Order

Mfr. Part #
SP4020-01FTG-C

Mouser Part #
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

₩1,747.2

₩895.4

₩717.6

₩553.8

Reel

₩379.1

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP4021-01FTG
Littelfuse
1: ₩1,513.2
100,320On Order

Mfr. Part #
SP4021-01FTG

Mouser Part #
576-SP4021-01FTG

Littelfuse

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

Learn More

Datasheet

100,320On Order

Cut Tape

₩1,513.2

₩790.9

₩614.6

₩472.7

Reel

₩310.4

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: ₩1,638
158,690On Order

Mfr. Part #
SP4021-01FTG-C

Mouser Part #
576-SP4021-01FTG-C

Littelfuse

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

Learn More

Datasheet

158,690On Order

Cut Tape

₩1,638

₩814.3

₩666.1

₩513.2

Reel

₩347.9

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: ₩2,230.8
3,982Expected 11/24/2026

Mfr. Part #
SG150

Mouser Part #
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

₩2,230.8

₩1,700.4

₩1,410.2

₩1,299.5

₩1,159.1

Reel

₩1,117

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SP2504NUTG
Littelfuse
1: ₩3,837.6
5,000Expected 10/26/2026

Mfr. Part #
SP2504NUTG

Mouser Part #
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

₩3,837.6

₩1,950

₩1,684.8

₩1,375.9

₩1,229.3

Reel

₩1,179.4

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Ethernet ESD, Lightning, & Power Fault Protection

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