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RS-485 ESD, Lightning, & Power Fault Protection

Littelfuse RS-485 ESD, Lightning, and Power Fault Protection feature polymeric positive temperature coefficients (PPTCs) that can protect against short circuit and power crosses. The RS-485 product line includes the resettable PPTCs, TVS diodes, GDTs, and SIDACtor series. The TVS Diode Arrays and SM712 series are specifically designed to protect RS-485 applications from ESD, EFT, and lightning-induced surges. When lightning occurs, the SIDACtor will react by causing voltage to increase across PPTC until GDT fires.

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Part #

Resettable Fuses - PPTC Polyswitch 0.26A

TS250-130F-RB-2
Littelfuse
1: $1.84
70In Stock

Mfr. Part No.
TS250-130F-RB-2

Mouser Part No
650-TS250-130F-RB-2

Littelfuse

Resettable Fuses - PPTC Polyswitch 0.26A

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Datasheet

70In Stock

Cut Tape

$1.84

$1.70

$1.40

$1.21

View

Reel

$0.868

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

SG350Q
Littelfuse
1: $1.94
22,000On Order

Mfr. Part No.
SG350Q

Mouser Part No
576-SG350Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

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Datasheet

22,000On Order

Cut Tape

$1.94

$1.48

$1.39

$1.17

$1.01

Reel

$0.974

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

ESD Protection Diodes / TVS Diodes 600W 2 Channel Green Asymmetrical SOT23-

SM712-02HTG
Littelfuse
1: $1.82
646,763On Order

Mfr. Part No.
SM712-02HTG

Mouser Part No
576-SM712-02HTG

Littelfuse

ESD Protection Diodes / TVS Diodes 600W 2 Channel Green Asymmetrical SOT23-

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Datasheet

646,763On Order

Cut Tape

$1.82

$0.913

$0.753

$0.588

$0.53

Reel

$0.43

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Thyristor Surge Protection Devices - TSPD Bi 22V 500A DO214 2L

P0220SCMCLRP
Littelfuse
1: $2.79
4,082On Order

Mfr. Part No.
P0220SCMCLRP

Mouser Part No
576-P0220SCMCLRP

Littelfuse

Thyristor Surge Protection Devices - TSPD Bi 22V 500A DO214 2L

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Datasheet

4,082On Order

Cut Tape

$2.79

$1.78

$1.20

$0.953

$0.873

Reel

$0.801

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Thyristor Surge Protection Devices - TSPD 500A 65V

P0720SCMCLRP
Littelfuse
1: $2.39
2In Stock

Mfr. Part No.
P0720SCMCLRP

Mouser Part No
576-P0720SCMCLRP

Littelfuse

Thyristor Surge Protection Devices - TSPD 500A 65V

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Datasheet

2In Stock

Cut Tape

$2.39

$1.54

$1.03

$0.817

$0.802

Reel

$0.802

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

SG150
Littelfuse
1: $1.94
3,982Expected 24/11/2026

Mfr. Part No.
SG150

Mouser Part No
576-SG150

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

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Datasheet

3,982Expected 24/11/2026

Cut Tape

$1.94

$1.48

$1.23

$1.13

$1.01

Reel

$0.974

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3600V 2POLE AXIAL LEAD HV GDT

GTCA28-362M-R03
Littelfuse
1: $5.25
1,000Expected 28/8/2026

Mfr. Part No.
GTCA28-362M-R03

Mouser Part No
650-GTCA28-362M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3600V 2POLE AXIAL LEAD HV GDT

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Datasheet

1,000Expected 28/8/2026

$5.25

$4.01

$3.33

$3.26

Min.: 1
Mult.: 1

Thyristor Surge Protection Devices - TSPD 500A 58V

P0640SCMCLRP
Littelfuse
1: $2.79
2,452Expected 17/12/2026

Mfr. Part No.
P0640SCMCLRP

Mouser Part No
576-P0640SCMCLRP

Littelfuse

Thyristor Surge Protection Devices - TSPD 500A 58V

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Datasheet

2,452Expected 17/12/2026

Cut Tape

$2.79

$1.78

$1.20

$0.953

$0.873

Reel

$0.802

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Resettable Fuses - PPTC .12A 250V

TRF250-120U-2
Littelfuse
1: $1.25
1,500Expected 18/8/2026

Mfr. Part No.
TRF250-120U-2

Mouser Part No
650-TRF250-120U-2

Littelfuse

Resettable Fuses - PPTC .12A 250V

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Datasheet

1,500Expected 18/8/2026

Cut Tape

$1.25

$1.15

$0.932

$0.879

View

Reel

$0.567

Min.: 1
Mult.: 1

: 1,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT

GTCA28-750M-R20
Littelfuse
1: $3.86
1,000Stock Available

Mfr. Part No.
GTCA28-750M-R20

Mouser Part No
650-GTCA28-750M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE AXIAL LEADS GDT

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Datasheet

1,000Stock Available

More Info Available

$3.86

$2.96

$2.45

$2.34

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 150V 2POLE AXIAL LEADS GDT

GTCA28-151M-R10
Littelfuse
1,000: $1.93
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCA28-151M-R10

Mouser Part No
650-GTCA28-151M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 150V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.93

$1.92

Min.: 1,000
Mult.: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350V 8mm 20KA 2POLE

GTCA28-351M-R20
Littelfuse
1,000: $2.34
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCA28-351M-R20

Mouser Part No
650-GTCA28-351M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 350V 8mm 20KA 2POLE

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.34

Min.: 1,000
Mult.: 100

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 3POLE AXIAL LEADS GDT

GTCA38-231M-R10
Littelfuse
1: $3.47
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCA38-231M-R10

Mouser Part No
650-GTCA38-231M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 3POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$3.47

$2.67

$2.20

$2.08

Min.: 1
Mult.: 1

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 8mm 90V Axial Leaded

GTCA38-900M-R20
Littelfuse
1,000: $4.57
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCA38-900M-R20

Mouser Part No
650-GTCA38-900M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 8mm 90V Axial Leaded

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$4.57

Min.: 1,000
Mult.: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 230V 2POLE SMT GDT

GTCS23-231M-R01-2
Littelfuse
2,000: $0.721
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCS23-231M-R01-2

Mouser Part No
650-GTCS23-231M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 230V 2POLE SMT GDT

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$0.721

Min.: 2,000
Mult.: 2,000

: 2,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 5mm 470V Surface Mnt

GTCS25-471M-R02-2
Littelfuse
1,500: $2.24
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
GTCS25-471M-R02-2

Mouser Part No
650-GTCS25-471M-R022

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 5mm 470V Surface Mnt

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$2.24

$2.18

View

Min.: 1,500
Mult.: 1,500

: 1,500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT

GTCS28-750M-R10-2
Littelfuse
4,000: $1.86
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
GTCS28-750M-R10-2

Mouser Part No
650-GTCS28-750MR10-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 75V 2POLE SMT GDT

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Cut Tape

$1.86

Min.: 4,000
Mult.: 500

: 500

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 145V NOMINAL GP S.A. STANDARD

CG5145
Littelfuse
3,000: $1.94
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5145

Mouser Part No
576-CG5145

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 145V NOMINAL GP S.A. STANDARD

Datasheet

Non-Stocked Lead-Time 21 Weeks

$1.94

Min.: 3,000
Mult.: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 145V NOMINAL

CG5145L
Littelfuse
1,000: $1.93
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5145L

Mouser Part No
576-CG5145L

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STANDARD 145V NOMINAL

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$1.93

$1.88

$1.86

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 145V NOMINAL GP S.A. STANDARD

CG5145LTR
Littelfuse
1,000: $2.39
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5145LTR

Mouser Part No
576-CG5145LTR

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 145V NOMINAL GP S.A. STANDARD

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$2.39

$2.33

$2.28

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD S.A. 150V M

CG5150MS
Littelfuse
900: $2.28
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5150MS

Mouser Part No
576-CG5150MS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors STANDARD S.A. 150V M

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$2.28

$2.19

$2.18

View

Min.: 900
Mult.: 900

: 900

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

CG5230
Littelfuse
3,000: $1.96
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5230

Mouser Part No
576-CG5230

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

Datasheet

Non-Stocked Lead-Time 21 Weeks

$1.96

Min.: 3,000
Mult.: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

CG5230L
Littelfuse
1,000: $2.14
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5230L

Mouser Part No
576-CG5230L

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$2.14

Min.: 1,000
Mult.: 1,000

: 1,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V NOMINAL SMT GP S.A. STANDARD

CG5230LS
Littelfuse
900: $1.93
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5230LS

Mouser Part No
576-CG5230LS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 230V NOMINAL SMT GP S.A. STANDARD

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$1.93

$1.88

$1.86

Quote

Min.: 900
Mult.: 900

: 900

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

CG5230LTR
Littelfuse
1,000: $2.39
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
CG5230LTR

Mouser Part No
576-CG5230LTR

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GP S.A. STAN. 230V

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$2.39

$2.35

$2.30

Quote

Min.: 1,000
Mult.: 1,000

: 1,000

RS-485 ESD, Lightning, & Power Fault Protection

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RS-485 ESD, Lightning, & Power Fault Protection

All Results (389)

Circuit Protection

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