Gas Discharge Tubes

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Littelfuse Gas Discharge Tubes (GDTs) are designed for high-voltage transient surge protection in small devices. Littelfuse GDTs are designed to dissipate large amounts of energy and are ideal for lightning surge protection. GDTs are widely applied to outdoor telecommunications equipment. These Littelfuse devices are available in leaded and surface-mount configurations.

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Part #

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE SMT GDT

GTCS26-231M-R05-2
Littelfuse
1: $1.88
880In Stock

Mfr. Part No.
GTCS26-231M-R05-2

Mouser Part No
650-GTCS26-231MR05-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE SMT GDT

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Datasheet

880In Stock

Cut Tape

$1.88

$1.45

$1.19

$1.18

Reel

$0.935

MouseReel Available

Min.: 1
Mult.: 1

: 750

GTCx2-R

5 kA

230 V

2 Electrode

SMD/SMT

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V2POLE SMT GDT

GTCS26-351M-R05-2
Littelfuse
1: $1.88
1,473In Stock

Mfr. Part No.
GTCS26-351M-R05-2

Mouser Part No
650-GTCS26-351M-R052

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V2POLE SMT GDT

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Datasheet

1,473In Stock

Cut Tape

$1.88

$1.45

$1.18

$0.941

Reel

$0.935

MouseReel Available

Min.: 1
Mult.: 1

: 750

GTCx2-R

5 kA

350 V

2 Electrode

SMD/SMT

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 75V 2POLE SMT GDT

GTCS26-750M-R05-2
Littelfuse
1: $1.82
508In Stock

Mfr. Part No.
GTCS26-750M-R05-2

Mouser Part No
650-GTCS26-750M-R052

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 75V 2POLE SMT GDT

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Datasheet

508In Stock

Cut Tape

$1.82

$1.39

$1.38

$1.18

Reel

$1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 750

GTCx2-R

5 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

GTCS35-601M-R05-2
Littelfuse
1: $2.29
1,057In Stock

Mfr. Part No.
GTCS35-601M-R05-2

Mouser Part No
650-GTCS35-601M-R052

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Learn More

Datasheet

1,057In Stock

Cut Tape

$2.29

$1.77

$1.46

$1.38

Reel

$1.32

$1.31

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

GTCx3-R

5 kA

600 V

3 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

7.6 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V 8mm 10KA 2POLE

GTCA28-141M-R10
Littelfuse
1: $3.13
745In Stock

Mfr. Part No.
GTCA28-141M-R10

Mouser Part No
650-GTCA28-141M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V 8mm 10KA 2POLE

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Datasheet

745In Stock

$3.13

$2.39

$1.99

$1.85

Min.: 1
Mult.: 1

GTCx28-R

10 kA

140 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 350V 2POLE AXIAL LEADS GDT

GTCA28-351M-R10
Littelfuse
1: $3.13
50In Stock

Mfr. Part No.
GTCA28-351M-R10

Mouser Part No
650-GTCA28-351M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 350V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

50In Stock

$3.13

$2.39

$1.99

$1.83

View

Min.: 1
Mult.: 1

GTCx28-R

10 kA

350 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT

GTCA28-102M-R03
Littelfuse
1: $4.98
808Expected 9/9/2026

Mfr. Part No.
GTCA28-102M-R03

Mouser Part No
650-GTCA28-102M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1000V 2POLE AXIAL LEAD HV GDT

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Datasheet

808Expected 9/9/2026

$4.98

$3.81

$3.16

$3.07

Min.: 1
Mult.: 1

GTCx28-R

3 kA

1 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2700V 2POLE AXIAL LEADS HV GDT

GTCA28-272L-R03
Littelfuse
1: $5.37
2,976On Order

Mfr. Part No.
GTCA28-272L-R03

Mouser Part No
650-GTCA28-272L-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2700V 2POLE AXIAL LEADS HV GDT

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Datasheet

2,976On Order

$5.37

$4.10

$3.41

$3.34

Min.: 1
Mult.: 1

GTCx28-R

3 kA

2.7 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE SMT GDT

GTCS36-900M-R10-2
Littelfuse
1: $4.63
4,468Expected 26/8/2026

Mfr. Part No.
GTCS36-900M-R10-2

Mouser Part No
650-GTCS36-900M-R102

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 3POLE SMT GDT

Learn More

Datasheet

4,468Expected 26/8/2026

Cut Tape

$4.63

$3.32

$2.64

$2.14

Reel

$2.03

MouseReel Available

Min.: 1
Mult.: 1

: 750

GTCx3-R

10 kA

90 V

3 Electrode

SMD/SMT

Failsafe Not Protected

6 mm

8.2 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

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

GTCA28-750M-R20
Littelfuse
1: $3.95
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

Learn More

Datasheet

1,000Stock Available

More Info Available

$3.95

$3.03

$2.50

$2.39

Min.: 1
Mult.: 1

GTCx28-R

20 kA

75 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

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

GTCA28-151M-R10
Littelfuse
1,000: $1.97
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

$1.97

$1.96

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

GTCx28-R

10 kA

150 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

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

GTCA28-351M-R20
Littelfuse
1,000: $2.39
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

$2.39

Min.: 1,000
Mult.: 100

GTCx28-R

20 kA

350 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

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

GTCA38-231M-R10
Littelfuse
1: $3.54
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

$3.54

$2.72

$2.25

$2.13

Min.: 1
Mult.: 1

GTCx3-R

10 kA

230 V

3 Electrode

Axial

Failsafe Not Protected

8 mm

13.4 mm

- 40 C

+ 90 C

Tray

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

GTCA38-900M-R20
Littelfuse
1,000: $4.67
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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$4.67

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

GTCx3-R

20 kA

90 V

3 Electrode

Axial

Failsafe Not Protected

8 mm

13.4 mm

- 40 C

+ 90 C

Tray

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

GTCS23-231M-R01-2
Littelfuse
2,000: $0.737
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

$0.737

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

: 2,000

GTCx2-R

1 kA

230 V

2 Electrode

SMD/SMT

Failsafe Not Protected

3 mm

4.5 mm

- 40 C

+ 90 C

Reel

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

GTCS25-471M-R02-2
Littelfuse
1,500: $2.32
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

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Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$2.32

$2.22

Quote

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

: 1,500

GTCx2-R

2.5 kA

470 V

2 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

4.4 mm

- 40 C

+ 90 C

Reel

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

GTCS28-750M-R10-2
Littelfuse
4,000: $1.90
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

$1.90

Min.: 4,000
Mult.: 500

: 500

GTCx2-R

10 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

8.2 mm

6 mm

- 40 C

+ 90 C

Reel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

GTCA25-301M-R02
Littelfuse
1,000: $2.02
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA25-301M-R02

Mouser Part No
650-GTCA25-301M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.02

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

GTCx2-R

2.5 kA

300 V

2 Electrode

Axial

Failsafe Not Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GTCA25-601L-R05

GTCA25-601L-R05
Littelfuse
1,000: $2.45
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA25-601L-R05

Mouser Part No
650-GTCA25-601L-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GTCA25-601L-R05

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.45

$2.42

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

GTCx2-R

5 kA

600 V

2 Electrode

Axial

Failsafe Not Protected

0.8 mm

5.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 2POLE AXIAL LEADS GDT

GTCA25-900M-R02
Littelfuse
1: $5.31
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA25-900M-R02

Mouser Part No
650-GTCA25-900M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$5.31

$3.49

$2.59

$2.31

View

Min.: 1
Mult.: 1

GTCx2-R

2.5 kA

90 V

2 Electrode

Axial

Failsafe Not Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 5mm 90V Axial Leaded

GTCA25-900M-R05
Littelfuse
1,000: $2.02
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA25-900M-R05

Mouser Part No
650-GTCA25-900M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors Gas Discharge Tubes 5mm 90V Axial Leaded

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.02

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

GTCx2-R

5 kA

90 V

2 Electrode

Axial

Failsafe Not Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

GTCA26-141M-R05
Littelfuse
1,000: $2.28
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA26-141M-R05

Mouser Part No
650-GTCA26-141M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.28

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

GTCx2-R

5 kA

140 V

2 Electrode

Axial

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 150V 2POLE AXIAL LEADS GDT

GTCA26-151M-R05-FS
Littelfuse
5,000: $1.40
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA26-151M-R05-FS

Mouser Part No
650-GTCA26-151MR05FS

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 150V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.40

Min.: 5,000
Mult.: 1,000

GTCx2-R

5 kA

150 V

2 Electrode

Axial

Failsafe Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V 6mm 5KA 2POLE

GTCA26-201M-R05
Littelfuse
1,000: $2.28
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA26-201M-R05

Mouser Part No
650-GTCA26-201M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 200V 6mm 5KA 2POLE

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.28

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

GTCx2-R

5 kA

200 V

2 Electrode

Axial

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE AXIAL LEADS GDT

GTCA26-231M-R05
Littelfuse
1,000: $2.28
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA26-231M-R05

Mouser Part No
650-GTCA26-231M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$2.28

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

GTCx2-R

5 kA

230 V

2 Electrode

Axial

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes

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75 V
90 V
100 V
140 V
150 V
200 V
230 V
250 V
260 V
300 V
350 V
400 V
420 V
470 V
500 V
550 V
600 V
800 V
1 kV
1.2 kV