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 3MM 350V 2POLE CHIP TYPE SMT

GTCS23-351M-R01-2
Littelfuse
1: $1.09
10In Stock

Mfr. Part No.
GTCS23-351M-R01-2

Mouser Part No
650-GTCS23-351MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 350V 2POLE CHIP TYPE SMT

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Datasheet

10In Stock

Cut Tape

$1.09

$0.83

$0.688

$0.635

$0.573

Reel

$0.53

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

350 V

2 Electrode

SMD/SMT

Failsafe Not Protected

3 mm

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT

GTCS23-750M-R01-2
Littelfuse
1: $0.98
59In Stock
40,000On Order

Mfr. Part No.
GTCS23-750M-R01-2

Mouser Part No
650-GTCS23-750M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 75V 2POLE SMT GDT

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Datasheet

59In Stock

40,000On Order

Cut Tape

$0.98

$0.747

$0.619

$0.571

Reel

$0.484

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

3 mm

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

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

GTCS26-231M-R05-2
Littelfuse
1: $1.22
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

$1.22

$0.928

$0.77

$0.677

Reel

$0.673

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 75V 2POLE SMT GDT

GTCS26-750M-R05-2
Littelfuse
1: $1.31
250In 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

250In Stock

Cut Tape

$1.31

$0.999

$0.994

$0.809

Reel

$0.786

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: $1.65
857In 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

857In Stock

Cut Tape

$1.65

$1.27

$1.05

$0.992

Reel

$0.95

$0.946

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 8MM 3600V 2POLE AXIAL LEAD HV GDT

GTCA28-362M-R03
Littelfuse
1: $3.86
1,000Expected 2026/08/13

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 2026/08/13

$3.86

$2.95

$2.45

$2.40

Min.: 1
Mult.: 1

GTCx28-R

3 kA

3.6 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE AXIAL LEADS GDT

GTCA28-231M-R20
Littelfuse
1,000: $1.79
1,000Factory Stock Available

Mfr. Part No.
GTCA28-231M-R20

Mouser Part No
650-GTCA28-231M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 230V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

1,000Factory Stock Available

More Info Available

$1.79

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

GTCx28-R

20 kA

230 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 300V 3POLE AXIAL LEADS GDT

GTCA36-301M-R10
Littelfuse
1,000: $1.62
1,000Factory Stock Available

Mfr. Part No.
GTCA36-301M-R10

Mouser Part No
650-GTCA36-301M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 300V 3POLE AXIAL LEADS GDT

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Datasheet

1,000Factory Stock Available

More Info Available

$1.62

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

GTCx3-R

10 kA

300 V

3 Electrode

Axial

Failsafe Not Protected

6 mm

8 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V 20KA 20% 2-POLE SMD

GTCS28-900M-R10-2
Littelfuse
4,000: $1.36
4,000Factory Stock Available

Mfr. Part No.
GTCS28-900M-R10-2

Mouser Part No
650-GTCS28-900MR102

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 90V 20KA 20% 2-POLE SMD

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Datasheet

4,000Factory Stock Available

More Info Available

Cut Tape

$1.36

$1.35

Min.: 4,000
Mult.: 500

: 500

GTCx2-R

10 kA

90 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 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

Learn More

Datasheet

1,000Stock Available

More Info Available

$2.84

$2.17

$1.80

$1.72

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: $1.42
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

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$1.42

$1.41

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: $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

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: $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

$1.97

$1.62

$1.54

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: $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

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$3.36

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: $0.53
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

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: $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

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Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$1.65

$1.60

View

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: $1.37
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

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 5MM 250V 2POLE AXIAL LEADS GDT

GTCA25-251M-R02
Littelfuse
1,000: $1.45
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
GTCA25-251M-R02

Mouser Part No
650-GTCA25-251M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 250V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.45

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

GTCx2-R

2.5 kA

250 V

2 Electrode

Axial

Failsafe Not Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

GTCA25-301M-R02
Littelfuse
1,000: $1.45
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

$1.45

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: $1.76
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

$1.76

$1.74

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
1,000: $1.55
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

$1.55

$1.50

Quote

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

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: $1.45
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

$1.45

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: $1.64
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

$1.64

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: $1.01
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

$1.01

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: $1.64
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

$1.64

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

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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