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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: $1.35
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

$1.35

$1.25

$1.02

$0.855

View

Reel

$0.638

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: $1.43
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

$1.43

$1.09

$1.02

$0.86

$0.745

Reel

$0.716

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

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

SM712-02HTG
Littelfuse
1: $1.34
646,221On 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

646,221On Order

Cut Tape

$1.34

$0.671

$0.554

$0.432

$0.39

Reel

$0.316

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

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

P0220SCMCLRP
Littelfuse
1: $2.05
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

$2.05

$1.31

$0.883

$0.701

$0.642

Reel

$0.589

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Thyristor Surge Protection Devices - TSPD 500A 65V

P0720SCMCLRP
Littelfuse
1: $1.76
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

$1.76

$1.13

$0.757

$0.601

$0.59

Reel

$0.59

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: $1.43
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

$1.43

$1.09

$0.904

$0.833

$0.741

Reel

$0.716

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: $3.86
1,000Expected 28/08/2026

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 28/08/2026

$3.86

$2.95

$2.45

$2.40

Min.: 1
Mult.: 1

Thyristor Surge Protection Devices - TSPD 500A 58V

P0640SCMCLRP
Littelfuse
1: $2.05
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

$2.05

$1.31

$0.883

$0.701

$0.642

Reel

$0.59

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Resettable Fuses - PPTC .12A 250V

TRF250-120U-2
Littelfuse
1: $0.92
1,500Expected 01/09/2026

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 01/09/2026

Cut Tape

$0.92

$0.796

$0.639

$0.608

View

Reel

$0.417

Min.: 1
Mult.: 1

: 1,500

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

GTCA28-750M-R20
Littelfuse
1: $2.84
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

$2.84

$2.18

$1.80

$1.72

Min.: 1
Mult.: 1

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

GTCA28-151M-R10
Littelfuse
1,000: $1.42
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

$1.42

$1.41

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

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

GTCA28-351M-R20
Littelfuse
1,000: $1.72
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

$1.72

Min.: 1,000
Mult.: 100

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

GTCA38-231M-R10
Littelfuse
1: $2.55
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

$2.55

$1.96

$1.62

$1.53

Min.: 1
Mult.: 1

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

GTCA38-900M-R20
Littelfuse
1,000: $3.36
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

$3.36

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: $0.53
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

$0.53

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: $1.65
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

$1.65

$1.60

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: $1.37
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

$1.37

Min.: 4,000
Mult.: 500

: 500

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

CG5145
Littelfuse
3,000: $1.43
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

$1.43

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

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

CG5145L
Littelfuse
1,000: $1.42
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

$1.42

$1.38

$1.37

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: $1.76
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

$1.76

$1.71

$1.68

Quote

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

: 1,000

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

CG5150MS
Littelfuse
900: $1.68
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

$1.68

$1.61

$1.60

View

Min.: 900
Mult.: 900

: 900

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

CG5230
Littelfuse
3,000: $1.44
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

$1.44

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

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

CG5230L
Littelfuse
1,000: $1.57
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

$1.57

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: $1.42
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

$1.42

$1.38

$1.37

Quote

Min.: 900
Mult.: 900

: 900

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

CG5230LTR
Littelfuse
1,000: $1.76
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

$1.76

$1.73

$1.69

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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