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 90V 3POLE RADIAL LEADS GDT

GTCR36-900M-R10
Littelfuse
1: $3.75
1,304In Stock

Mfr. Part No.
GTCR36-900M-R10

Mouser Part No
650-GTCR36-900M-R10

Littelfuse

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

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Datasheet

1,304In Stock

$3.75

$2.88

$2.21

$2.11

View

Min.: 1
Mult.: 1

GTCx3-R

10 kA

90 V

3 Electrode

Radial

Failsafe Not Protected

6 mm

9.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT

GTCS35-900M-R05
Littelfuse
1: $2.74
3,240In Stock

Mfr. Part No.
GTCS35-900M-R05

Mouser Part No
650-GTCS35-900M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V 3POLE SMT GDT

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Datasheet

3,240In Stock

$2.74

$2.11

$1.75

$1.53

View

Min.: 1
Mult.: 1

GTCx3-R

5 kA

90 V

3 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

7.6 mm

- 40 C

+ 90 C

Tray

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

GTCC23-231M-R01-2
Littelfuse
1: $2.09
4,067In Stock

Mfr. Part No.
GTCC23-231M-R01-2

Mouser Part No
650-GTCC23-231MR01-2

Littelfuse

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

Learn More

Datasheet

4,067In Stock

Cut Tape

$2.09

$1.60

$1.10

$1.01

$0.919

Reel

$0.859

MouseReel Available

Min.: 1
Mult.: 1

: 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, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

GTCR38-601M-R20
Littelfuse
1: $6.80
951In Stock

Mfr. Part No.
GTCR38-601M-R20

Mouser Part No
650-GTCR38-601M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Learn More

Datasheet

951In Stock

$6.80

$5.21

$4.31

$3.98

$3.78

Min.: 1
Mult.: 1

GTCx3-R

20 kA

600 V

3 Electrode

Radial

Failsafe Not Protected

7.5 mm

10 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT

GTCS25-900M-R02
Littelfuse
1: $3.63
3,661In Stock

Mfr. Part No.
GTCS25-900M-R02

Mouser Part No
650-GTCS25-900M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 90V2POLE SMT GDT

Learn More

Datasheet

3,661In Stock

$3.63

$2.78

$2.31

$2.13

View

Min.: 1
Mult.: 1

GTCx2-R

2.5 kA

90 V

2 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

4.4 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT

GTCC23-201M-R01-2
Littelfuse
1: $1.74
2,341In Stock

Mfr. Part No.
GTCC23-201M-R01-2

Mouser Part No
650-GTCC23-201MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 200V 2POLE CHIP TYPE SMT

Learn More

Datasheet

2,341In Stock

Cut Tape

$1.74

$1.33

$1.10

$1.01

Reel

$0.803

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

200 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 8MM 3000V 2POLE AXIAL LEAD HV GDT

GTCA28-302M-R03
Littelfuse
1: $4.98
978In Stock

Mfr. Part No.
GTCA28-302M-R03

Mouser Part No
650-GTCA28-302M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 3000V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

978In Stock

$4.98

$3.57

$3.04

$2.88

$2.68

Min.: 1
Mult.: 1

GTCx28-R

3 kA

3 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT

GTCA28-601M-R05
Littelfuse
1: $3.98
978In Stock

Mfr. Part No.
GTCA28-601M-R05

Mouser Part No
650-GTCA28-601M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 600V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

978In Stock

$3.98

$3.04

$2.53

$2.32

View

Min.: 1
Mult.: 1

GTCx28-R

5 kA

600 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2100V 2POLE AXIAL LEAD HV GDT

GTCA28-212M-R03
Littelfuse
1: $4.98
1,466In Stock

Mfr. Part No.
GTCA28-212M-R03

Mouser Part No
650-GTCA28-212M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2100V 2POLE AXIAL LEAD HV GDT

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Datasheet

1,466In Stock

$4.98

$3.81

$3.16

$3.07

Min.: 1
Mult.: 1

GTCx28-R

3 kA

2.1 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT

GTCA38-900M-R10
Littelfuse
1: $3.54
1,156In Stock

Mfr. Part No.
GTCA38-900M-R10

Mouser Part No
650-GTCA38-900M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 90V 3POLE AXIAL LEADS GDT

Learn More

Datasheet

1,156In Stock

$3.54

$2.72

$2.25

$2.09

View

Min.: 1
Mult.: 1

GTCx3-R

10 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 8MM 75V 2POLE SMT GDT

GTCS28-750M-R05-2
Littelfuse
1: $3.79
1,773In Stock

Mfr. Part No.
GTCS28-750M-R05-2

Mouser Part No
650-GTCS28-750MR05-2

Littelfuse

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

Learn More

Datasheet

1,773In Stock

Cut Tape

$3.79

$2.93

$2.54

Reel

$2.02

$1.82

$1.72

MouseReel Available

Min.: 1
Mult.: 1

: 500

GTCx2-R

5 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

8.2 mm

6 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT

GTCA28-242M-R03
Littelfuse
1: $5.96
2,808In Stock

Mfr. Part No.
GTCA28-242M-R03

Mouser Part No
650-GTCA28-242M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 2400V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

2,808In Stock

$5.96

$4.35

$3.56

$3.21

View

Min.: 1
Mult.: 1

GTCx28-R

3 kA

2.4 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 2POLE AXIAL LEADS GDT

GTCA26-900M-R05
Littelfuse
1: $5.31
150In Stock

Mfr. Part No.
GTCA26-900M-R05

Mouser Part No
650-GTCA26-900M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 90V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

150In Stock

$5.31

$3.49

$2.59

$2.31

$2.02

Min.: 1
Mult.: 1

GTCx2-R

5 kA

90 V

2 Electrode

Axial

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT

GTCA28-402M-R03
Littelfuse
1: $6.44
100In Stock
1,000Expected 22/9/2026

Mfr. Part No.
GTCA28-402M-R03

Mouser Part No
650-GTCA28-402M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 4000V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

100In Stock

1,000Expected 22/9/2026

$6.44

$4.92

$4.07

$3.34

Min.: 1
Mult.: 1

GTCx28-R

3 kA

4 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 SMT GDT

GTCS28-231M-R10-2
Littelfuse
1: $4.99
279In Stock

Mfr. Part No.
GTCS28-231M-R10-2

Mouser Part No
650-GTCS28-231MR10-2

Littelfuse

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

Learn More

Datasheet

279In Stock

Cut Tape

$4.99

$3.25

$2.65

Reel

$2.02

MouseReel Available

Min.: 1
Mult.: 1

: 500

GTCx2-R

10 kA

230 V

2 Electrode

SMD/SMT

Failsafe Not Protected

8.2 mm

6 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 150V 2POLE CHIP TYPE SMT

GTCC23-151M-R01-2
Littelfuse
1: $2.09
1,190In Stock
4,000Expected 22/6/2026

Mfr. Part No.
GTCC23-151M-R01-2

Mouser Part No
650-GTCC23-151MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 150V 2POLE CHIP TYPE SMT

Learn More

Datasheet

1,190In Stock

4,000Expected 22/6/2026

Cut Tape

$2.09

$1.60

$1.28

$1.08

$0.954

Reel

$0.859

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

150 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 300V 2POLE SMT GDT

GTCS23-301M-R01-2
Littelfuse
1: $1.79
872In Stock

Mfr. Part No.
GTCS23-301M-R01-2

Mouser Part No
650-GTCS23-301M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 300V 2POLE SMT GDT

Learn More

Datasheet

872In Stock

Cut Tape

$1.79

$1.46

$1.13

$0.927

Reel

$0.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

300 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 50V 2POLE AXIAL LEADS GDT

GTCA26-501M-R05
Littelfuse
1: $3.79
781In Stock

Mfr. Part No.
GTCA26-501M-R05

Mouser Part No
650-GTCA26-501M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 50V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

781In Stock

$3.79

$2.91

$2.40

$2.03

$1.99

Min.: 1
Mult.: 1

GTCx2-R

5 kA

500 V

2 Electrode

Axial

Failsafe Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

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

GTCA28-750M-R10
Littelfuse
1: $3.13
816In Stock

Mfr. Part No.
GTCA28-750M-R10

Mouser Part No
650-GTCA28-750M-R10

Littelfuse

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

Learn More

Datasheet

816In Stock

$3.13

$2.29

$1.92

$1.74

View

Min.: 1
Mult.: 1

GTCx28-R

10 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 6MM 230V 3POLE RADIAL LEADS GDT

GTCR36-231M-R10
Littelfuse
1: $4.50
1,042In Stock

Mfr. Part No.
GTCR36-231M-R10

Mouser Part No
650-GTCR36-231M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 230V 3POLE RADIAL LEADS GDT

Learn More

Datasheet

1,042In Stock

$4.50

$3.35

$2.64

$2.39

View

Min.: 1
Mult.: 1

GTCx3-R

10 kA

230 V

3 Electrode

Radial

Failsafe Not Protected

6 mm

9.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V 2POLE AXIAL LEADS GDT

GTCA26-351M-R05
Littelfuse
1: $3.79
668In Stock

Mfr. Part No.
GTCA26-351M-R05

Mouser Part No
650-GTCA26-351M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 6MM 350V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

668In Stock

$3.79

$2.91

$2.40

$2.22

View

Min.: 1
Mult.: 1

GTCx2-R

5 kA

350 V

2 Electrode

Axial

Failsafe Not Protected

6 mm

4.2 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 230V 3POLE SMT GDT

GTCS35-231M-R05
Littelfuse
1: $2.29
2,130In Stock

Mfr. Part No.
GTCS35-231M-R05

Mouser Part No
650-GTCS35-231M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 230V 3POLE SMT GDT

Learn More

Datasheet

2,130In Stock

$2.29

$1.75

$1.46

$1.34

View

Min.: 1
Mult.: 1

GTCx3-R

5 kA

230 V

3 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

7.6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V 1KA 20% 2-POLE SMD

GTCC23-301M-R01-2
Littelfuse
1: $1.74
1,427In Stock

Mfr. Part No.
GTCC23-301M-R01-2

Mouser Part No
650-GTCC23-301M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300V 1KA 20% 2-POLE SMD

Learn More

Datasheet

1,427In Stock

Cut Tape

$1.74

$1.33

$1.10

$1.01

Reel

$0.774

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

300 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 5MM 250V 2POLE AXIAL LEADS GDT

GTCA25-251M-R02
Littelfuse
1: $3.38
726In Stock

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

726In Stock

$3.38

$2.60

$2.15

$1.99

View

Min.: 1
Mult.: 1

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 3MM 90V 2POLE SMT GDT

GTCS23-900M-R01-2
Littelfuse
1: $1.52
47,674In Stock

Mfr. Part No.
GTCS23-900M-R01-2

Mouser Part No
650-GTCS23-900MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 90V 2POLE SMT GDT

Learn More

Datasheet

47,674In Stock

Cut Tape

$1.52

$1.15

$0.956

$0.883

$0.813

Reel

$0.737

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

90 V

2 Electrode

SMD/SMT

Failsafe Not Protected

3 mm

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

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