.hide-partial { max-height: none; } .show-more { display: none; }

General Port Protection Solutions

Littelfuse General Port Protection provides a wide array of solutions for power and communication ports. Ports need protection from common electrical hazards such as lightning surges, induced power surges, power cross, electrical fast transient, electrostatic discharge, and short-circuits due to aging wires or installation errors. Littelfuse General Port Protection products are ideal for automotive, building automation, consumer electronics, and industrial applications.

All Results (982)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Varistors 60V 20mm Epoxy UltraMOV

V20E60P
Littelfuse
1: $684
3.657In Stock

Mfr. Part #
V20E60P

Mouser Part #
576-V20E60P

Littelfuse

Varistors 60V 20mm Epoxy UltraMOV

Learn More

Datasheet

3.657In Stock

$684

$490

$441

$386

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT

GTCR36-231M-R10
Littelfuse
1: $2.861
1.042In Stock

Mfr. Part #
GTCR36-231M-R10

Mouser Part #
650-GTCR36-231M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT

Learn More

Datasheet

1.042In Stock

$2.861

$2.198

$1.809

$1.672

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT

GTCA28-242M-R03
Littelfuse
1: $3.765
2.808In Stock

Mfr. Part #
GTCA28-242M-R03

Mouser Part #
650-GTCA28-242M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

2.808In Stock

$3.765

$2.882

$2.387

$2.198

$2.030

Min.: 1
Mult.: 1

Surface Mount Fuses 32V .250A SLIM Fast Acting 0402

0435.250KRHFS
Littelfuse
1: $1.641
24.673In Stock
30.000Expected 1/19/2027

Mfr. Part #
0435.250KRHFS

Mouser Part #
576-0435.250KRHFS

Littelfuse

Surface Mount Fuses 32V .250A SLIM Fast Acting 0402

Learn More

Datasheet

24.673In Stock

30.000Expected 1/19/2027

Cut Tape

$1.641

$1.451

$1.378

$1.115

View

Reel

$705

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

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

0461002.ER
Littelfuse
1: $2.040
25.563In Stock

Mfr. Part #
0461002.ER

Mouser Part #
576-0461002.ER

Littelfuse

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

Learn More

Datasheet

25.563In Stock

Cut Tape

$2.040

$1.830

$1.662

$1.409

View

Reel

$1.020

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

Cartridge Fuses 500Vac 400Vdc TL 1A 5X20

0477001.MXP
Littelfuse
1: $2.566
20.708In Stock

Mfr. Part #
0477001.MXP

Mouser Part #
576-0477001.MXP

Littelfuse

Cartridge Fuses 500Vac 400Vdc TL 1A 5X20

Learn More

Datasheet

20.708In Stock

$2.566

$2.303

$2.114

$1.767

View

Min.: 1
Mult.: 1

Cartridge Fuses 500Vac 400Vdc TL 5A 5X20

0477005.MXP
Littelfuse
1: $2.703
13.003In Stock

Mfr. Part #
0477005.MXP

Mouser Part #
576-0477005.MXP

Littelfuse

Cartridge Fuses 500Vac 400Vdc TL 5A 5X20

Learn More

Datasheet

13.003In Stock

$2.703

$2.293

$2.114

$1.756

View

Min.: 1
Mult.: 1

Cartridge Fuses 500Vac 400Vdc TL 8A 5X20

0477008.MXP
Littelfuse
1: $2.840
13.900In Stock

Mfr. Part #
0477008.MXP

Mouser Part #
576-0477008.MXP

Littelfuse

Cartridge Fuses 500Vac 400Vdc TL 8A 5X20

Learn More

Datasheet

13.900In Stock

$2.840

$2.366

$2.177

$1.809

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD 24V BI

AQ24CANA-02HTG
Littelfuse
1: $789
141.420In Stock

Mfr. Part #
AQ24CANA-02HTG

Mouser Part #
576-AQ24CANA-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 24V BI

Learn More

Datasheet

141.420In Stock

Cut Tape

$789

$408

$347

$265

Reel

$177

View

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

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

LC03-3.3BTG
Littelfuse
1: $3.397
51.150In Stock

Mfr. Part #
LC03-3.3BTG

Mouser Part #
576-LC03-3.3BTG

Littelfuse

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

Learn More

Datasheet

51.150In Stock

Cut Tape

$3.397

$2.219

$1.725

$1.409

Reel

$1.188

View

MouseReel Available

Min.: 1
Mult.: 1

: 2.500

ESD Protection Diodes / TVS Diodes TVS ARRAY

SP3213-01UTG
Littelfuse
1: $747
100.580In Stock

Mfr. Part #
SP3213-01UTG

Mouser Part #
576-SP3213-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes TVS ARRAY

Learn More

Datasheet

100.580In Stock

Cut Tape

$747

$467

$308

$240

View

Reel

$166

MouseReel Available

Min.: 1
Mult.: 1

: 15.000

ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL

SP4022-01FTG-C
Littelfuse
1: $947
83.512In Stock
57.000Expected 9/28/2026

Mfr. Part #
SP4022-01FTG-C

Mouser Part #
576-SP4022-01FTG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 1.3pF 15A BIDIRECTIONAL

Learn More

Datasheet

83.512In Stock

57.000Expected 9/28/2026

Cut Tape

$947

$450

$381

$292

$263

Reel

$198

MouseReel Available

Min.: 1
Mult.: 1

: 3.000

ESD Protection Diodes / TVS Diodes 3.3V 20A Lightning Surge Prot

SP4065-08ATG
Littelfuse
1: $2.282
26.861In Stock

Mfr. Part #
SP4065-08ATG

Mouser Part #
576-SP4065-08ATG

Littelfuse

ESD Protection Diodes / TVS Diodes 3.3V 20A Lightning Surge Prot

Learn More

Datasheet

26.861In Stock

Cut Tape

$2.282

$1.115

$959

$793

View

Reel

$566

MouseReel Available

Min.: 1
Mult.: 1

: 4.000

ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI

SPHV24-01ETG-C
Littelfuse
1: $589
252.337In Stock
220.000Expected 10/26/2026

Mfr. Part #
SPHV24-01ETG-C

Mouser Part #
576-SPHV24-01ETG-C

Littelfuse

ESD Protection Diodes / TVS Diodes 1CH 24V 200W BI

Learn More

Datasheet

252.337In Stock

220.000Expected 10/26/2026

Cut Tape

$589

$346

$231

$177

Reel

$105

View

MouseReel Available

Min.: 1
Mult.: 1

: 10.000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT

GTCS23-900M-R01-2
Littelfuse
1: $1.031
47.074In Stock

Mfr. Part #
GTCS23-900M-R01-2

Mouser Part #
650-GTCS23-900MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT

Learn More

Datasheet

47.074In Stock

Cut Tape

$1.031

$786

$651

$601

$597

Reel

$561

MouseReel Available

Min.: 1
Mult.: 1

: 2.000

Resettable Fuses - PPTC Polyswitch 0.13A

TSV250-130F-2
Littelfuse
1: $1.167
29.804In Stock

Mfr. Part #
TSV250-130F-2

Mouser Part #
650-TSV250-130F-2

Littelfuse

Resettable Fuses - PPTC Polyswitch 0.13A

Learn More

Datasheet

29.804In Stock

Cut Tape

$1.167

$1.073

$857

$819

Reel

$484

View

MouseReel Available

Min.: 1
Mult.: 1

: 1.200

Cartridge Fuses 250V .1A Slo-Blo 3AG

0313.100MXP
Littelfuse
1: $3.576
1.014In Stock

Mfr. Part #
0313.100MXP

Mouser Part #
576-0313.100MXP

Littelfuse

Cartridge Fuses 250V .1A Slo-Blo 3AG

Learn More

Datasheet

1.014In Stock

$3.576

$3.239

$3.124

$2.230

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V .25A Slo-Blo 3AG

0313.250HXP
Littelfuse
1: $2.219
4.621In Stock
3.200Expected 8/20/2026

Mfr. Part #
0313.250HXP

Mouser Part #
576-0313.250HXP

Littelfuse

Cartridge Fuses 250V .25A Slo-Blo 3AG

Learn More

Datasheet

4.621In Stock

3.200Expected 8/20/2026

$2.219

$1.851

$1.704

$1.420

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V .5A Slo-Blo

0313.500HXP
Littelfuse
1: $1.714
3.249In Stock
1.100Expected 8/11/2026

Mfr. Part #
0313.500HXP

Mouser Part #
576-0313.500HXP

Littelfuse

Cartridge Fuses 250V .5A Slo-Blo

Learn More

Datasheet

Product Comments

3.249In Stock

1.100Expected 8/11/2026

$1.714

$1.441

$1.336

$1.073

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 1A Slo-Blo

0313001.HXP
Littelfuse
1: $1.809
4.094In Stock
2.500Expected 8/10/2026

Mfr. Part #
0313001.HXP

Mouser Part #
576-0313001.HXP

Littelfuse

Cartridge Fuses 250V 1A Slo-Blo

Learn More

Datasheet

4.094In Stock

2.500Expected 8/10/2026

$1.809

$1.599

$1.451

$1.220

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 2A Slo-Blo

0313002.MXP
Littelfuse
1: $1.662
10.236In Stock

Mfr. Part #
0313002.MXP

Mouser Part #
576-0313002.MXP

Littelfuse

Cartridge Fuses 250V 2A Slo-Blo

Learn More

Datasheet

10.236In Stock

$1.662

$1.378

$1.273

$1.062

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 3A Slo-Blo

0313003.HXP
Littelfuse
1: $1.714
2.492In Stock
700Expected 8/17/2026

Mfr. Part #
0313003.HXP

Mouser Part #
576-0313003.HXP

Littelfuse

Cartridge Fuses 250V 3A Slo-Blo

Learn More

Datasheet

2.492In Stock

700Expected 8/17/2026

$1.714

$1.441

$1.336

$1.094

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 3A Slo-Blo

0313003.MXP
Littelfuse
1: $1.641
4.189In Stock
4.000Expected 9/14/2026

Mfr. Part #
0313003.MXP

Mouser Part #
576-0313003.MXP

Littelfuse

Cartridge Fuses 250V 3A Slo-Blo

Learn More

Datasheet

4.189In Stock

4.000Expected 9/14/2026

$1.641

$1.378

$1.273

$1.062

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 4A Slo-Blo

0313004.MXP
Littelfuse
1: $1.883
6.466In Stock

Mfr. Part #
0313004.MXP

Mouser Part #
576-0313004.MXP

Littelfuse

Cartridge Fuses 250V 4A Slo-Blo

Learn More

Datasheet

6.466In Stock

$1.883

$1.567

$1.451

$1.199

View

Min.: 1
Mult.: 1

Cartridge Fuses 250V 5A Slo-Blo

0313005.HXP
Littelfuse
1: $1.946
4.828In Stock

Mfr. Part #
0313005.HXP

Mouser Part #
576-0313005.HXP

Littelfuse

Cartridge Fuses 250V 5A Slo-Blo

Learn More

Datasheet

4.828In Stock

$1.946

$1.441

$1.388

$1.167

View

Min.: 1
Mult.: 1

General Port Protection Solutions

All Results (982)

Customer Service Office

Company

Resources

Support

General Port Protection Solutions

All Results (982)

Circuit Protection

Semiconductors

Industrial Automation

Sensors