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

Communications Infrastructure Solutions

Littelfuse provides a wide range of communication infrastructure solutions that ensure speed and reliability in all environments. These solutions are energy efficient, dependable, and easy to incorporate into compact designs. Communication infrastructure solutions from Littelfuse include TVS diodes, varistors, NTC thermistors, fuses, and more.

All Results (1.136)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

Filter by

.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; }

Select a category below to see filtering options and narrow down your search.

Part #

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Uni-Di .20pF 20kV SESD

SESD0402X1UN-0020-090
Littelfuse
1: Rp5.871
215.543In Stock

Mfr. Part No.
SESD0402X1UN-0020-090

Mouser Part No
650-SESD0402X1UN0020

Littelfuse

ESD Protection Diodes / TVS Diodes 1-CH 0402 9V Uni-Di .20pF 20kV SESD

Learn More

Datasheet

215.543In Stock

Cut Tape

Rp5.871

Rp5.394

Rp4.715

Rp4.311

View

Reel

Rp2.899

MouseReel Available

Min.: 1
Mult.: 1

Reel: 50.000

Surface Mount Fuses FUSE 75V HA NANO2 Pb-Free 125A

0881125.UR
Littelfuse
1: Rp445.991
689In Stock
500Expected 31/03/2026

Mfr. Part No.
0881125.UR

Mouser Part No
576-0881125.UR

Littelfuse

Surface Mount Fuses FUSE 75V HA NANO2 Pb-Free 125A

Learn More

Datasheet

689In Stock

500Expected 31/03/2026

Cut Tape

Rp445.991

Rp399.576

Rp290.784

Rp268.769

View

Reel

Rp233.361

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

Specialty Fuses 170 VDC F/A TELECOM 60A PCB MOUNT

0TLS060.TXLS
Littelfuse
10: Rp542.675
400In Stock

Mfr. Part No.
0TLS060.TXLS

Mouser Part No
576-0TLS060.TXLS

Littelfuse

Specialty Fuses 170 VDC F/A TELECOM 60A PCB MOUNT

Learn More

Datasheet

400In Stock

Rp542.675

Rp447.092

Rp415.170

Rp383.982

Rp377.194

Min.: 10
Mult.: 10

ESD Protection Diodes / TVS Diodes ESD 430V BI

AK1-430C-Y
Littelfuse
1: Rp580.834
228In Stock

Mfr. Part No.
AK1-430C-Y

Mouser Part No
576-AK1-430C-Y

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 430V BI

Learn More

Datasheet

228In Stock

Rp580.834

Rp458.833

Rp458.650

View

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 1800V 3kA 8/20us UL 1449

CG41.8SM
Littelfuse
1: Rp34.307
2.000In Stock

Mfr. Part No.
CG41.8SM

Mouser Part No
576-CG41.8SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 1800V 3kA 8/20us UL 1449

Learn More

Datasheet

2.000In Stock

Cut Tape

Rp34.307

Rp28.620

Rp26.418

Rp21.832

View

Reel

Rp14.438

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2500V 3kA 8/20us UL 1449

CG42.5SM
Littelfuse
1: Rp27.886
1.955In Stock

Mfr. Part No.
CG42.5SM

Mouser Part No
576-CG42.5SM

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2500V 3kA 8/20us UL 1449

Learn More

Datasheet

1.955In Stock

Cut Tape

Rp27.886

Rp24.217

Rp22.749

Rp18.896

View

Reel

Rp14.438

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Industrial & Electrical Fuses 250A 600VAC 300VDC Class T

JLLS250.X
Littelfuse
1: Rp3.619.115
14In Stock

Mfr. Part No.
JLLS250.X

Mouser Part No
576-JLLS250.X

Littelfuse

Industrial & Electrical Fuses 250A 600VAC 300VDC Class T

Learn More

Datasheet

14In Stock

Rp3.619.115

Rp3.081.578

Rp2.910.043

Rp2.291.232

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 5V .13pF 20kV

SP0201B-ULC-01UTG
Littelfuse
1: Rp6.605
26.861In Stock

Mfr. Part No.
SP0201B-ULC-01UTG

Mouser Part No
576-SP0201BULC-01UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 5V .13pF 20kV

Learn More

Datasheet

26.861In Stock

Cut Tape

Rp6.605

Rp4.238

Rp2.293

Rp2.165

View

Reel

Rp1.981

MouseReel Available

Min.: 1
Mult.: 1

Reel: 15.000

ESD Protection Diodes / TVS Diodes 5V .25pF 20kV

SP0402U-ULC-01ETG
Littelfuse
1: Rp8.439
148.310In Stock

Mfr. Part No.
SP0402U-ULC-01ETG

Mouser Part No
576-SP0402UULC-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 5V .25pF 20kV

Learn More

Datasheet

148.310In Stock

Cut Tape

Rp8.439

Rp5.229

Rp3.321

Rp2.477

Reel

Rp1.614

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

ESD Protection Diodes / TVS Diodes 1 Ch 30kV 65pF SPA

SP1003-01DTG
Littelfuse
1: Rp8.072
63.097In Stock

Mfr. Part No.
SP1003-01DTG

Mouser Part No
576-SP1003-01DTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 30kV 65pF SPA

Learn More

Datasheet

63.097In Stock

Cut Tape

Rp8.072

Rp5.063

Rp2.568

Rp2.532

View

Reel

Rp2.348

MouseReel Available

Min.: 1
Mult.: 1

Reel: 8.000

ESD Protection Diodes / TVS Diodes 1 Ch 30KV 30pF

SP1003-01ETG
Littelfuse
1: Rp8.256
65.668In Stock

Mfr. Part No.
SP1003-01ETG

Mouser Part No
576-SP1003-01ETG

Littelfuse

ESD Protection Diodes / TVS Diodes 1 Ch 30KV 30pF

Learn More

Datasheet

65.668In Stock

Cut Tape

Rp8.256

Rp4.587

Rp2.458

Rp2.220

Rp2.128

Reel

Rp1.945

MouseReel Available

Min.: 1
Mult.: 1

Reel: 10.000

ESD Protection Diodes / TVS Diodes 5V .2pF 20kV 4CH

SP1004U-ULC-04UTG
Littelfuse
1: Rp11.741
23.833In Stock

Mfr. Part No.
SP1004U-ULC-04UTG

Mouser Part No
576-SP1004UULC-04UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 5V .2pF 20kV 4CH

Learn More

Datasheet

23.833In Stock

Cut Tape

Rp11.741

Rp8.788

Rp6.183

Rp5.284

Rp4.752

Reel

Rp3.761

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array

SP3400-02UTG
Littelfuse
1: Rp7.155
18.704In Stock
12.000Expected 19/05/2026

Mfr. Part No.
SP3400-02UTG

Mouser Part No
576-SP3400-02UTG

Littelfuse

ESD Protection Diodes / TVS Diodes 1pF uDFN-6L 2 Ch Diode Array

Learn More

Datasheet

18.704In Stock

12.000Expected 19/05/2026

Cut Tape

Rp7.155

Rp5.284

Rp5.210

Rp5.137

Reel

Rp4.330

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

ESD Protection Diodes / TVS Diodes ESD 3.3V UNI

SP3420-04UTG
Littelfuse
1: Rp16.144
36.258In Stock

Mfr. Part No.
SP3420-04UTG

Mouser Part No
576-SP3420-04UTG

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 3.3V UNI

Learn More

Datasheet

36.258In Stock

Cut Tape

Rp16.144

Rp13.264

Rp9.742

Rp7.815

Rp7.375

Reel

Rp6.880

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

ESD Protection Diodes / TVS Diodes Silicon ESD Devices

SESD0402X1BN-0015-096
Littelfuse
1: Rp10.641
36.914In Stock

Mfr. Part No.
SESD0402X1BN-0015-096

Mouser Part No
650-SESD0402X1BN0015

Littelfuse

ESD Protection Diodes / TVS Diodes Silicon ESD Devices

Learn More

Datasheet

36.914In Stock

Cut Tape

Rp10.641

Rp7.724

Rp5.651

Rp4.715

View

Reel

Rp3.302

MouseReel Available

Min.: 1
Mult.: 1

Reel: 50.000

ESD Protection Diodes / TVS Diodes Silicon ESD Devices

SESD0402X1UN-0030-088
Littelfuse
1: Rp3.853
54.537In Stock

Mfr. Part No.
SESD0402X1UN-0030-088

Mouser Part No
650-SESD0402X1UN0030

Littelfuse

ESD Protection Diodes / TVS Diodes Silicon ESD Devices

Learn More

Datasheet

54.537In Stock

Cut Tape

Rp3.853

Rp3.321

Rp3.156

Rp2.954

View

Reel

Rp2.697

MouseReel Available

Min.: 1
Mult.: 1

Reel: 50.000

ESD Protection Diodes / TVS Diodes 4-CH STD 9V Uni-Di .20pF 20kV SESD

SESD1004Q4UG-0020-090
Littelfuse
1: Rp18.163
7.424In Stock

Mfr. Part No.
SESD1004Q4UG-0020-090

Mouser Part No
650-SESD1004Q4UG0020

Littelfuse

ESD Protection Diodes / TVS Diodes 4-CH STD 9V Uni-Di .20pF 20kV SESD

Learn More

Datasheet

7.424In Stock

Cut Tape

Rp18.163

Rp14.860

Rp9.577

Rp9.008

View

Reel

Rp6.751

MouseReel Available

Min.: 1
Mult.: 1

Reel: 25.000

Cartridge Fuses 50A 500V

0606050.UXTHP
Littelfuse
1: Rp207.860
2.202In Stock

Mfr. Part No.
0606050.UXTHP

Mouser Part No
576-0606050.UXTHP

Littelfuse

Cartridge Fuses 50A 500V

Learn More

Datasheet

2.202In Stock

Rp207.860

Rp172.452

Rp159.060

Rp131.908

View

Min.: 1
Mult.: 1

Cartridge Fuses 63A 500V

0606063.UXTHP
Littelfuse
1: Rp242.351
543In Stock

Mfr. Part No.
0606063.UXTHP

Mouser Part No
576-0606063.UXTHP

Littelfuse

Cartridge Fuses 63A 500V

Learn More

Datasheet

543In Stock

Rp242.351

Rp201.072

Rp185.478

Rp153.923

View

Min.: 1
Mult.: 1

Surface Mount Fuses 75VDC 80A .56ohms 881 NANO2

0881080.UR
Littelfuse
1: Rp281.244
287In Stock
500Expected 02/07/2026

Mfr. Part No.
0881080.UR

Mouser Part No
576-0881080.UR

Littelfuse

Surface Mount Fuses 75VDC 80A .56ohms 881 NANO2

Learn More

Datasheet

287In Stock

500Expected 02/07/2026

Cut Tape

Rp281.244

Rp234.462

Rp216.299

Rp179.424

View

Reel

Rp146.585

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

Surface Mount Fuses 80A 75V FAST ACTING

0881080.URF
Littelfuse
1: Rp254.276
783In Stock

Mfr. Part No.
0881080.URF

Mouser Part No
576-0881080.URF

Littelfuse

Surface Mount Fuses 80A 75V FAST ACTING

Learn More

Datasheet

783In Stock

Cut Tape

Rp254.276

Rp210.979

Rp194.835

Rp161.445

View

Reel

Rp146.585

Min.: 1
Mult.: 1

Reel: 500

Surface Mount Fuses 75VDC 100A .45ohms 881 NANO2

0881100.UR
Littelfuse
1: Rp359.031
657In Stock

Mfr. Part No.
0881100.UR

Mouser Part No
576-0881100.UR

Littelfuse

Surface Mount Fuses 75VDC 100A .45ohms 881 NANO2

Learn More

Datasheet

657In Stock

Cut Tape

Rp359.031

Rp326.559

Rp293.353

Rp260.697

Reel

Rp220.335

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

Surface Mount Fuses 100A 75V FAST ACTING

0881100.URF
Littelfuse
1: Rp409.483
303In Stock

Mfr. Part No.
0881100.URF

Mouser Part No
576-0881100.URF

Littelfuse

Surface Mount Fuses 100A 75V FAST ACTING

Learn More

Datasheet

303In Stock

Cut Tape

Rp409.483

Rp361.600

Rp331.512

Rp277.208

View

Reel

Rp236.480

Min.: 1
Mult.: 1

Reel: 500

ESD Protection Diodes / TVS Diodes 66V 10KA

LTKAK10-066C
Littelfuse
1: Rp624.314
376In Stock

Mfr. Part No.
LTKAK10-066C

Mouser Part No
576-LTKAK10-066C

Littelfuse

ESD Protection Diodes / TVS Diodes 66V 10KA

Learn More

Datasheet

376In Stock

Cut Tape

Rp624.314

Rp568.176

Reel

Rp567.992

MouseReel Available

Min.: 1
Mult.: 1

Reel: 400

ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Uni-Directional

SMCJ12A
Littelfuse
1: Rp9.356
25.995In Stock

Mfr. Part No.
SMCJ12A

Mouser Part No
576-SMCJ12A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 12V 5% Uni-Directional

Learn More

Datasheet

25.995In Stock

Cut Tape

Rp9.356

Rp6.054

Rp5.063

Rp4.018

Reel

Rp2.880

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3.000

Communications Infrastructure Solutions

All Results (1.136)

Customer Service Office

Company

Resources

Support

Communications Infrastructure Solutions

All Results (1.136)

Circuit Protection

Industrial Automation

Semiconductors