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 5MM 75V 3POLE SMT GDT

GTCS35-750M-R05-2
Littelfuse
1: $2.77
9,502In Stock
15,000Expected 17/12/2026

Mfr. Part No.
GTCS35-750M-R05-2

Mouser Part No
650-GTCS35-750MR05-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE SMT GDT

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Datasheet

9,502In Stock

15,000Expected 17/12/2026

Cut Tape

$2.77

$2.12

$1.77

$1.63

Reel

$1.44

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

GTCx3-R

5 kA

75 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 2700V 2POLE AXIAL LEADS HV GDT

GTCA28-272L-R03
Littelfuse
1: $6.30
2,976In Stock

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

2,976In Stock

$6.30

$4.77

$3.98

$3.67

$3.26

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 3MM 150V 2POLE CHIP TYPE SMT

GTCC23-151M-R01-2
Littelfuse
1: $1.70
4,190In Stock

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

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Datasheet

4,190In Stock

Cut Tape

$1.70

$1.30

$1.08

$0.993

$0.887

Reel

$0.84

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 75V 1KA 20% 2-POLE SMD

GTCC23-750M-R01-2
Littelfuse
1: $2.04
2,468In Stock

Mfr. Part No.
GTCC23-750M-R01-2

Mouser Part No
650-GTCC23-750M-R012

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 1KA 20% 2-POLE SMD

Learn More

Datasheet

2,468In Stock

Cut Tape

$2.04

$1.56

$1.25

$1.06

Reel

$0.811

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 75V 2.5KA 2POLE

GTCS25-750M-R02-2
Littelfuse
1: $3.94
3,245In Stock
3,000Expected 17/12/2026

Mfr. Part No.
GTCS25-750M-R02-2

Mouser Part No
650-GTCS25-750MR02-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 75V 2.5KA 2POLE

Learn More

Datasheet

3,245In Stock

3,000Expected 17/12/2026

Cut Tape

$3.94

$3.02

$2.50

$2.31

$2.14

Reel

$2.14

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

GTCx2-R

2.5 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

5 mm

4.4 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 400V 3POLE SMT GDT

GTCS35-401M-R05-2
Littelfuse
1: $2.69
2,575In Stock

Mfr. Part No.
GTCS35-401M-R05-2

Mouser Part No
650-GTCS35-401M-R052

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 400V 3POLE SMT GDT

Learn More

Datasheet

2,575In Stock

Cut Tape

$2.69

$2.26

$1.78

$1.51

Reel

$1.29

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

GTCx3-R

5 kA

400 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 5MM 75V 3POLE SMT GDT

GTCS35-750M-R05
Littelfuse
1: $2.24
7,043In Stock

Mfr. Part No.
GTCS35-750M-R05

Mouser Part No
650-GTCS35-750M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE SMT GDT

Learn More

Datasheet

7,043In Stock

$2.24

$1.73

$1.43

$1.31

View

Min.: 1
Mult.: 1

GTCx3-R

5 kA

75 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 140V 8mm 20KA 2POLE

GTCA28-141M-R20
Littelfuse
1: $3.86
49In Stock

Mfr. Part No.
GTCA28-141M-R20

Mouser Part No
650-GTCA28-141M-R20

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 140V 8mm 20KA 2POLE

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Datasheet

49In Stock

$3.86

$2.96

$2.39

$2.34

Min.: 1
Mult.: 1

GTCx28-R

20 kA

140 V

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-R10
Littelfuse
1: $3.06
129In Stock

Mfr. Part No.
GTCA28-601M-R10

Mouser Part No
650-GTCA28-601M-R10

Littelfuse

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

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Datasheet

129In Stock

$3.06

$2.34

$1.94

$1.81

Min.: 1
Mult.: 1

GTCx28-R

10 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 5MM 400V 2POLE AXIAL LEADS GDT

GTCA25-401M-R02
Littelfuse
1: $3.71
190In Stock

Mfr. Part No.
GTCA25-401M-R02

Mouser Part No
650-GTCA25-401M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 400V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

190In Stock

$3.71

$2.84

$2.35

$2.23

Min.: 1
Mult.: 1

GTCx2-R

2.5 kA

400 V

2 Electrode

Axial

Failsafe Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 500V 2POLE AXIAL LEADS GDT

GTCA25-501M-R02
Littelfuse
1: $3.30
434In Stock

Mfr. Part No.
GTCA25-501M-R02

Mouser Part No
650-GTCA25-501M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 500V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

434In Stock

$3.30

$2.54

$2.11

$1.97

Min.: 1
Mult.: 1

GTCx2-R

2.5 kA

500 V

2 Electrode

Axial

Failsafe Protected

5 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 2POLE AXIAL LEADS GDT

GTCA25-750M-R02
Littelfuse
1: $3.97
387In Stock

Mfr. Part No.
GTCA25-750M-R02

Mouser Part No
650-GTCA25-750M-R02

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

387In Stock

$3.97

$2.84

$2.53

$1.97

Min.: 1
Mult.: 1

GTCx2-R

2.5 kA

75 V

2 Electrode

Axial

Failsafe Protected

5 mm

- 40 C

+ 90 C

Tray

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

GTCA26-351M-R05
Littelfuse
1: $5.74
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

$5.74

$3.78

$2.86

$2.53

$2.23

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 8MM 1200V 2POLE AXIAL LEAD HV GDT

GTCA28-122M-R03
Littelfuse
1: $4.87
333In Stock

Mfr. Part No.
GTCA28-122M-R03

Mouser Part No
650-GTCA28-122M-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1200V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

333In Stock

$4.87

$3.73

$3.09

$3.01

Min.: 1
Mult.: 1

GTCx28-R

3 kA

1.2 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1500V 2POLE AXIAL LEAD HV GDT

GTCA28-152L-R03
Littelfuse
1: $4.96
97In Stock
1,000Expected 24/9/2026

Mfr. Part No.
GTCA28-152L-R03

Mouser Part No
650-GTCA28-152L-R03

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 1500V 2POLE AXIAL LEAD HV GDT

Learn More

Datasheet

97In Stock

1,000Expected 24/9/2026

$4.96

$4.47

$3.70

$3.41

View

Min.: 1
Mult.: 1

GTCx28-R

3 kA

1.5 kV

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 470V 2POLE AXIAL LEADS GDT

GTCA28-471M-R10
Littelfuse
1: $3.06
726In Stock

Mfr. Part No.
GTCA28-471M-R10

Mouser Part No
650-GTCA28-471M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 470V 2POLE AXIAL LEADS GDT

Learn More

Datasheet

726In Stock

$3.06

$2.34

$1.94

$1.81

Min.: 1
Mult.: 1

GTCx28-R

10 kA

470 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 800V 2POLE AXIAL LEADS HV GDT

GTCA28-801M-R05
Littelfuse
1: $3.89
154In Stock

Mfr. Part No.
GTCA28-801M-R05

Mouser Part No
650-GTCA28-801M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 8MM 800V 2POLE AXIAL LEADS HV GDT

Learn More

Datasheet

154In Stock

$3.89

$2.98

$2.48

$2.35

Min.: 1
Mult.: 1

GTCx28-R

5 kA

800 V

2 Electrode

Axial

Failsafe Not Protected

8 mm

6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE AXIAL LEADS GDT

GTCA35-750M-R05
Littelfuse
1: $3.43
544In Stock

Mfr. Part No.
GTCA35-750M-R05

Mouser Part No
650-GTCA35-750M-R05

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 5MM 75V 3POLE AXIAL LEADS GDT

Learn More

Datasheet

544In Stock

$3.43

$2.62

$2.61

$2.34

$2.05

Min.: 1
Mult.: 1

GTCx3-R

5 kA

75 V

3 Electrode

Axial

Failsafe Not Protected

5 mm

7.6 mm

- 40 C

+ 90 C

Tray

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT

GTCC23-141M-R01-2
Littelfuse
1: $1.70
1,891In Stock

Mfr. Part No.
GTCC23-141M-R01-2

Mouser Part No
650-GTCC23-141MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 140V 2POLE CHIP TYPE SMT

Learn More

Datasheet

1,891In Stock

Cut Tape

$1.70

$1.30

$1.08

$0.993

$0.887

Reel

$0.84

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

140 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 300V 1KA 20% 2-POLE SMD

GTCC23-301M-R01-2
Littelfuse
1: $1.70
917In 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

917In Stock

Cut Tape

$1.70

$1.30

$1.08

$0.993

$0.899

Reel

$0.84

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 3MM 400V 2POLE CHIP TYPE SMT

GTCC23-401M-R01-2
Littelfuse
1: $1.70
1,487In Stock

Mfr. Part No.
GTCC23-401M-R01-2

Mouser Part No
650-GTCC23-401MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 3MM 400V 2POLE CHIP TYPE SMT

Learn More

Datasheet

1,487In Stock

Cut Tape

$1.70

$1.30

$1.08

$0.993

$0.899

Reel

$0.84

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

400 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 500V 2POLE 4.5mm L

GTCC23-501M-R01-2
Littelfuse
1: $1.70
2,094In Stock

Mfr. Part No.
GTCC23-501M-R01-2

Mouser Part No
650-GTCC23-501MR01-2

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 500V 2POLE 4.5mm L

Learn More

Datasheet

2,094In Stock

Cut Tape

$1.70

$1.30

$1.08

$0.993

Reel

$0.758

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

GTCx2-R

1 kA

500 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 90V 2POLE CHIP TYPE SMT

GTCC23-900M-R01-2
Littelfuse
1: $1.70
590In Stock
14,000Expected 21/12/2026

Mfr. Part No.
GTCC23-900M-R01-2

Mouser Part No
650-GTCC23-900MR01-2

Littelfuse

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

Learn More

Datasheet

590In Stock

14,000Expected 21/12/2026

Cut Tape

$1.70

$1.30

$1.08

$0.993

Reel

$0.758

View

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 - GDTs / Gas Plasma Arrestors 7MM 90V 3POLE RADIAL LEADS GDT

GTCR37-900M-R10
Littelfuse
1: $3.67
372In Stock

Mfr. Part No.
GTCR37-900M-R10

Mouser Part No
650-GTCR37-900M-R10

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 7MM 90V 3POLE RADIAL LEADS GDT

Learn More

Datasheet

372In Stock

$3.67

$3.37

$2.80

$2.20

Min.: 1
Mult.: 1

GTCx3-R

10 kA

90 V

3 Electrode

Radial

Failsafe Not Protected

7.5 mm

11.5 mm

- 40 C

+ 90 C

Tray

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

GTCS23-351M-R01-2
Littelfuse
1: $1.48
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

Learn More

Datasheet

10In Stock

Cut Tape

$1.48

$1.13

$0.936

$0.864

$0.779

Reel

$0.721

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

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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