.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 3kW 33V 5% Uni-Directional

SMDJ33A
Littelfuse
1: $0.40
13,666In Stock

Mfr. Part No.
SMDJ33A

Mouser Part No
576-SMDJ33A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 33V 5% Uni-Directional

Learn More

Datasheet

13,666In Stock

Cut Tape

$0.40

$0.393

$0.38

$0.379

Reel

$0.343

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 36V 5% Uni-Directional

SMDJ36A
Littelfuse
1: $0.73
7,962In Stock

Mfr. Part No.
SMDJ36A

Mouser Part No
576-SMDJ36A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 36V 5% Uni-Directional

Learn More

Datasheet

7,962In Stock

Cut Tape

$0.73

$0.60

$0.533

$0.427

$0.404

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 36V 5% Bi-Directional

SMDJ36CA
Littelfuse
1: $0.59
17,805In Stock

Mfr. Part No.
SMDJ36CA

Mouser Part No
576-SMDJ36CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 36V 5% Bi-Directional

Learn More

Datasheet

17,805In Stock

Cut Tape

$0.59

$0.535

$0.498

$0.485

Reel

$0.477

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMDJ - A 400V

SMDJ400A
Littelfuse
1: $1.92
1,735In Stock

Mfr. Part No.
SMDJ400A

Mouser Part No
576-SMDJ400A

Littelfuse

ESD Protection Diodes / TVS Diodes SMDJ - A 400V

Datasheet

1,735In Stock

Cut Tape

$1.92

$1.50

$1.05

$0.905

$0.848

Reel

$0.848

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes SMDJ - CA 400V

SMDJ400CA
Littelfuse
1: $1.92
3,739In Stock

Mfr. Part No.
SMDJ400CA

Mouser Part No
576-SMDJ400CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMDJ - CA 400V

Datasheet

3,739In Stock

Cut Tape

$1.92

$1.50

$1.03

$0.99

$0.926

Reel

$0.848

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 40V 5% Uni-Directional

SMDJ40A
Littelfuse
1: $0.77
5,480In Stock

Mfr. Part No.
SMDJ40A

Mouser Part No
576-SMDJ40A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 40V 5% Uni-Directional

Learn More

Datasheet

5,480In Stock

Cut Tape

$0.77

$0.587

$0.512

$0.447

Reel

$0.415

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 40V 5% Bi-Directional

SMDJ40CA
Littelfuse
1: $0.89
11,610In Stock

Mfr. Part No.
SMDJ40CA

Mouser Part No
576-SMDJ40CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 40V 5% Bi-Directional

Learn More

Datasheet

11,610In Stock

Cut Tape

$0.89

$0.64

$0.587

$0.498

Reel

$0.477

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 43V 5% Bi-Directional

SMDJ43CA
Littelfuse
1: $0.77
4,524In Stock

Mfr. Part No.
SMDJ43CA

Mouser Part No
576-SMDJ43CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 43V 5% Bi-Directional

Learn More

Datasheet

4,524In Stock

Cut Tape

$0.77

$0.561

$0.518

$0.497

Reel

$0.477

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 45V 5% Bi-Directional

SMDJ45CA
Littelfuse
1: $1.22
3,711In Stock

Mfr. Part No.
SMDJ45CA

Mouser Part No
576-SMDJ45CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 45V 5% Bi-Directional

Learn More

Datasheet

3,711In Stock

Cut Tape

$1.22

$0.976

$0.684

$0.604

$0.551

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 5V 5% Uni-Directional

SMDJ5.0A
Littelfuse
1: $0.92
5,417In Stock

Mfr. Part No.
SMDJ5.0A

Mouser Part No
576-SMDJ5.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 5V 5% Uni-Directional

Learn More

Datasheet

5,417In Stock

Cut Tape

$0.92

$0.818

$0.615

$0.497

$0.416

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 5V 5% Bi-Directional

SMDJ5.0CA
Littelfuse
1: $0.77
9,100In Stock

Mfr. Part No.
SMDJ5.0CA

Mouser Part No
576-SMDJ5.0CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 5V 5% Bi-Directional

Learn More

Datasheet

9,100In Stock

Cut Tape

$0.77

$0.615

$0.483

$0.436

Reel

$0.407

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 51V 5% Bi-Directional

SMDJ51CA
Littelfuse
1: $1.22
5,395In Stock

Mfr. Part No.
SMDJ51CA

Mouser Part No
576-SMDJ51CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 51V 5% Bi-Directional

Learn More

Datasheet

5,395In Stock

Cut Tape

$1.22

$0.991

$0.764

$0.616

$0.565

Reel

$0.565

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 58V 5% Bi-Directional

SMDJ58CA
Littelfuse
1: $1.08
2,903In Stock
3,000Expected 2026/04/03

Mfr. Part No.
SMDJ58CA

Mouser Part No
576-SMDJ58CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 58V 5% Bi-Directional

Learn More

Datasheet

2,903In Stock

3,000Expected 2026/04/03

Cut Tape

$1.08

$0.832

$0.764

$0.604

$0.552

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 64V 5% Uni-Directional

SMDJ64A
Littelfuse
1: $1.08
7,078In Stock

Mfr. Part No.
SMDJ64A

Mouser Part No
576-SMDJ64A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 64V 5% Uni-Directional

Learn More

Datasheet

7,078In Stock

Cut Tape

$1.08

$0.872

$0.598

$0.48

$0.435

Reel

$0.414

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 64V 5% Bi-Directional

SMDJ64CA
Littelfuse
1: $0.97
3,938In Stock
15,000On Order

Mfr. Part No.
SMDJ64CA

Mouser Part No
576-SMDJ64CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 64V 5% Bi-Directional

Learn More

Datasheet

3,938In Stock

15,000On Order

Cut Tape

$0.97

$0.854

$0.647

$0.578

$0.562

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 70V 5% Uni-Directional

SMDJ70A
Littelfuse
1: $0.90
6,426In Stock

Mfr. Part No.
SMDJ70A

Mouser Part No
576-SMDJ70A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 70V 5% Uni-Directional

Learn More

Datasheet

6,426In Stock

Cut Tape

$0.90

$0.726

$0.533

$0.427

$0.404

Reel

$0.377

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 75V 5% Bi-Directional

SMDJ75CA
Littelfuse
1: $1.33
3,288In Stock
3,000Expected 2026/04/16

Mfr. Part No.
SMDJ75CA

Mouser Part No
576-SMDJ75CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 75V 5% Bi-Directional

Learn More

Datasheet

3,288In Stock

3,000Expected 2026/04/16

Cut Tape

$1.33

$1.10

$0.896

$0.745

Reel

$0.682

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 8V 5% Uni-Directional

SMDJ8.0A
Littelfuse
1: $1.06
4,165In Stock

Mfr. Part No.
SMDJ8.0A

Mouser Part No
576-SMDJ8.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 8V 5% Uni-Directional

Learn More

Datasheet

4,165In Stock

Cut Tape

$1.06

$0.829

$0.479

$0.447

$0.42

Reel

$0.414

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

ESD Protection Diodes / TVS Diodes 3kW 90V 5% Bi-Directional

SMDJ90CA
Littelfuse
1: $0.88
3,562In Stock

Mfr. Part No.
SMDJ90CA

Mouser Part No
576-SMDJ90CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 90V 5% Bi-Directional

Learn More

Datasheet

3,562In Stock

Cut Tape

$0.88

$0.719

$0.578

$0.565

Reel

$0.565

MouseReel Available

Min.: 1
Mult.: 1

Reel: 3,000

Varistors 30V 14mm Epoxy UltraMOV

V14E30P
Littelfuse
1: $0.58
5,598In Stock

Mfr. Part No.
V14E30P

Mouser Part No
576-V14E30P

Littelfuse

Varistors 30V 14mm Epoxy UltraMOV

Learn More

Datasheet

5,598In Stock

$0.58

$0.414

$0.372

$0.327

Min.: 1
Mult.: 1

Varistors 275V

V275LA40CP
Littelfuse
1: $0.97
2,793In Stock

Mfr. Part No.
V275LA40CP

Mouser Part No
576-V275LA40CP

Littelfuse

Varistors 275V

Learn More

Datasheet

2,793In Stock

$0.97

$0.697

$0.63

$0.556

View

Min.: 1
Mult.: 1

Varistors 820V 2500pF

V550LA80CP
Littelfuse
1: $1.38
9,584In Stock

Mfr. Part No.
V550LA80CP

Mouser Part No
576-V550LA80CP

Littelfuse

Varistors 820V 2500pF

Learn More

Datasheet

9,584In Stock

$1.38

$1.01

$0.914

$0.777

$0.729

Min.: 1
Mult.: 1

Varistors RADIAL VARISTOR LEAD FREE

V625LA80CP
Littelfuse
1: $2.43
1,105In Stock

Mfr. Part No.
V625LA80CP

Mouser Part No
576-V625LA80CP

Littelfuse

Varistors RADIAL VARISTOR LEAD FREE

Learn More

Datasheet

1,105In Stock

$2.43

$1.81

$1.66

$1.47

Min.: 1
Mult.: 1

Varistors 130V to 1000V LA Varistor

V680LA100CP
Littelfuse
1: $2.43
1,838In Stock

Mfr. Part No.
V680LA100CP

Mouser Part No
576-V680LA100CP

Littelfuse

Varistors 130V to 1000V LA Varistor

Learn More

Datasheet

1,838In Stock

$2.43

$1.81

$1.66

$1.47

Min.: 1
Mult.: 1

Resettable Fuses - PPTC .5A 60V 10A Imax

SMD050F-2
Littelfuse
1: $0.45
25,269In Stock

Mfr. Part No.
SMD050F-2

Mouser Part No
650-SMD050F-2

Littelfuse

Resettable Fuses - PPTC .5A 60V 10A Imax

Learn More

Datasheet

25,269In Stock

Cut Tape

$0.45

$0.412

$0.342

$0.316

Reel

$0.233

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

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