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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.

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Part #

ESD Protection Diodes / TVS Diodes 1-CH 0201 9V Uni-Di .20pF 20kV SESD

SESD0201X1UN-0020-090
Littelfuse
1: $0.82
113,841In Stock

Mfr. Part No.
SESD0201X1UN-0020-090

Mouser Part No
650-SESD0201X1UN0020

Littelfuse

ESD Protection Diodes / TVS Diodes 1-CH 0201 9V Uni-Di .20pF 20kV SESD

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Datasheet

113,841In Stock

Cut Tape

$0.82

$0.694

$0.675

$0.644

$0.205

Reel

$0.205

MouseReel Available

Min.: 1
Mult.: 1

: 75,000

ESD Protection Diodes / TVS Diodes ESD 380V BI

AK1-380C-Y
Littelfuse
1: $27.90
148In Stock
168Expected 2026/07/06

Mfr. Part No.
AK1-380C-Y

Mouser Part No
576-AK1-380C-Y

Littelfuse

ESD Protection Diodes / TVS Diodes ESD 380V BI

Learn More

Datasheet

148In Stock

168Expected 2026/07/06

$27.90

$22.52

$22.50

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 6-CH MINI 9V Uni-Di .20pF 20kV SESD

SESD1103Q6UG-0020-090
Littelfuse
1: $1.28
38,996In Stock

Mfr. Part No.
SESD1103Q6UG-0020-090

Mouser Part No
650-SESD1103Q6UG0020

Littelfuse

ESD Protection Diodes / TVS Diodes 6-CH MINI 9V Uni-Di .20pF 20kV SESD

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Datasheet

38,996In Stock

Cut Tape

$1.28

$1.04

$0.805

$0.662

View

Reel

$0.478

MouseReel Available

Min.: 1
Mult.: 1

: 65,000

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

SP0402U-ULC-02ETG
Littelfuse
1: $0.32
14,552In Stock

Mfr. Part No.
SP0402U-ULC-02ETG

Mouser Part No
576-SP0402UULC-02ETG

Littelfuse

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

Learn More

Datasheet

14,552In Stock

Cut Tape

$0.32

$0.212

$0.124

Reel

$0.124

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

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

CG42.5SM
Littelfuse
1: $1.33
1,935In 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

1,935In Stock

Cut Tape

$1.33

$1.17

$1.11

$0.936

Reel

$0.734

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

ESD Protection Diodes / TVS Diodes SMDJ - CA 300V

SMDJ300CA
Littelfuse
1: $2.67
4,503In Stock
3,000Expected 2026/06/22

Mfr. Part No.
SMDJ300CA

Mouser Part No
576-SMDJ300CA

Littelfuse

ESD Protection Diodes / TVS Diodes SMDJ - CA 300V

Datasheet

4,503In Stock

3,000Expected 2026/06/22

Cut Tape

$2.67

$1.72

$1.17

$0.99

$0.926

Reel

$0.848

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Surface Mount Fuses 75VDC 90A .54ohms 881 NANO2

0881090.UR
Littelfuse
1: $23.59
500In Stock

Mfr. Part No.
0881090.UR

Mouser Part No
576-0881090.UR

Littelfuse

Surface Mount Fuses 75VDC 90A .54ohms 881 NANO2

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Datasheet

500In Stock

Cut Tape

$23.59

$21.55

$19.88

$16.48

View

Reel

$12.90

MouseReel Available

Min.: 1
Mult.: 1

: 500

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

KR104R0J
Littelfuse
1: $1.16
3,656In Stock

Mfr. Part No.
KR104R0J

Mouser Part No
576-KR104R0J

Littelfuse

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

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Datasheet

3,656In Stock

$1.16

$0.868

$0.693

$0.652

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3kW 100V 5% Bi-Directional

SMDJ100CA
Littelfuse
1: $1.26
20,408In Stock

Mfr. Part No.
SMDJ100CA

Mouser Part No
576-SMDJ100CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 100V 5% Bi-Directional

Learn More

Datasheet

20,408In Stock

Cut Tape

$1.26

$1.02

$0.754

$0.604

$0.565

Reel

$0.565

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 22V 5% Bi-Directional

SMDJ22CA
Littelfuse
1: $0.961
3,290In Stock

Mfr. Part No.
SMDJ22CA

Mouser Part No
576-SMDJ22CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 22V 5% Bi-Directional

Learn More

Datasheet

3,290In Stock

Cut Tape

$0.961

$0.74

$0.598

$0.525

Reel

$0.525

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 48V 5% Bi-Directional

SMDJ48CA
Littelfuse
1: $0.83
8,888In Stock

Mfr. Part No.
SMDJ48CA

Mouser Part No
576-SMDJ48CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 48V 5% Bi-Directional

Learn More

Datasheet

8,888In Stock

Cut Tape

$0.83

$0.826

$0.684

$0.554

Reel

$0.483

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 6V 5% Uni-Directional

SMDJ6.0A
Littelfuse
1: $0.88
14,275In Stock

Mfr. Part No.
SMDJ6.0A

Mouser Part No
576-SMDJ6.0A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 6V 5% Uni-Directional

Learn More

Datasheet

14,275In Stock

Cut Tape

$0.88

$0.719

$0.533

$0.427

$0.414

Reel

$0.414

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 78V 5% Bi-Directional

SMDJ78CA
Littelfuse
1: $0.87
3,726In Stock

Mfr. Part No.
SMDJ78CA

Mouser Part No
576-SMDJ78CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 78V 5% Bi-Directional

Learn More

Datasheet

3,726In Stock

Cut Tape

$0.87

$0.77

$0.684

$0.554

$0.551

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SP0402B-ULC-01ETG
Littelfuse
1: $0.40
98,071In Stock

Mfr. Part No.
SP0402B-ULC-01ETG

Mouser Part No
576-SP0402BULC-01ETG

Littelfuse

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

Learn More

Datasheet

98,071In Stock

Cut Tape

$0.40

$0.208

$0.114

Reel

$0.114

MouseReel Available

Min.: 1
Mult.: 1

: 10,000

Varistors VARISTOR RA SERIES LEAD FREE

V82RA16X2749
Littelfuse
1: $6.88
398In Stock

Mfr. Part No.
V82RA16X2749

Mouser Part No
576-V82RA16X2749

Littelfuse

Varistors VARISTOR RA SERIES LEAD FREE

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Datasheet

398In Stock

$6.88

$5.69

$5.42

$4.71

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 3kW 150V 5% Uni-Directional

SMDJ150A
Littelfuse
1: $0.761
5,279In Stock

Mfr. Part No.
SMDJ150A

Mouser Part No
576-SMDJ150A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 150V 5% Uni-Directional

Learn More

Datasheet

5,279In Stock

Cut Tape

$0.761

$0.633

$0.554

$0.457

$0.449

Reel

$0.449

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 220V 5% Uni-Directional

SMDJ220A
Littelfuse
1: $1.78
3,194In Stock

Mfr. Part No.
SMDJ220A

Mouser Part No
576-SMDJ220A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 220V 5% Uni-Directional

Learn More

Datasheet

3,194In Stock

Cut Tape

$1.78

$1.48

$1.14

$0.911

Reel

$0.797

View

Min.: 1
Mult.: 1

: 3,000

Cartridge Fuses 40A 500V

0606040.UXTHP
Littelfuse
1: $9.00
629In Stock

Mfr. Part No.
0606040.UXTHP

Mouser Part No
576-0606040.UXTHP

Littelfuse

Cartridge Fuses 40A 500V

Learn More

Datasheet

629In Stock

$9.00

$8.56

Min.: 1
Mult.: 1

Cartridge Fuses 63A 500V

0606063.UXTHP
Littelfuse
1: $15.35
543In Stock

Mfr. Part No.
0606063.UXTHP

Mouser Part No
576-0606063.UXTHP

Littelfuse

Cartridge Fuses 63A 500V

Learn More

Datasheet

543In Stock

$15.35

$12.73

$11.76

$9.75

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 58V 10KA Tube

LTKAK10-058C-TP
Littelfuse
1: $31.97
63In Stock

Mfr. Part No.
LTKAK10-058C-TP

Mouser Part No
576-LTKAK10-058C-TP

Littelfuse

ESD Protection Diodes / TVS Diodes 58V 10KA Tube

Learn More

Datasheet

63In Stock

$31.97

$27.76

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional

SMCJ100A
Littelfuse
1: $0.28
13,000In Stock

Mfr. Part No.
SMCJ100A

Mouser Part No
576-SMCJ100A

Littelfuse

ESD Protection Diodes / TVS Diodes 1.5kW 100V 5% Uni-Directional

Learn More

Datasheet

13,000In Stock

Cut Tape

$0.28

$0.227

$0.197

$0.18

Reel

$0.171

View

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 10V 5% Uni-Directional

SMDJ10A
Littelfuse
1: $0.89
7,765In Stock

Mfr. Part No.
SMDJ10A

Mouser Part No
576-SMDJ10A

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 10V 5% Uni-Directional

Learn More

Datasheet

7,765In Stock

Cut Tape

$0.89

$0.726

$0.533

$0.427

$0.414

Reel

$0.414

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

ESD Protection Diodes / TVS Diodes 3kW 14V 5% Bi-Directional

SMDJ14CA
Littelfuse
1: $0.95
7,053In Stock

Mfr. Part No.
SMDJ14CA

Mouser Part No
576-SMDJ14CA

Littelfuse

ESD Protection Diodes / TVS Diodes 3kW 14V 5% Bi-Directional

Learn More

Datasheet

7,053In Stock

Cut Tape

$0.95

$0.776

$0.604

$0.493

$0.438

Reel

$0.366

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMDJ45CA
Littelfuse
1: $1.22
3,611In Stock

Mfr. Part No.
SMDJ45CA

Mouser Part No
576-SMDJ45CA

Littelfuse

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

Learn More

Datasheet

3,611In Stock

Cut Tape

$1.22

$0.976

$0.684

$0.604

$0.551

Reel

$0.515

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

SMDJ70CA
Littelfuse
1: $0.59
16,012In Stock

Mfr. Part No.
SMDJ70CA

Mouser Part No
576-SMDJ70CA

Littelfuse

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

Learn More

Datasheet

16,012In Stock

Cut Tape

$0.59

$0.565

Reel

$0.565

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Communications Infrastructure Solutions

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Communications Infrastructure Solutions

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