Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

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SG Gas Discharge Tubes

Littelfuse SG Gas Discharge Tubes (GDT) offer high surge ratings in a miniature package and are designed for surface mounting on PCB with a small size of 4.5mm x 3.2mm x 2.7mm. The GDTs' low insertion loss is perfectly suited to broadband equipment applications. Their capacitance does not vary with voltage, and will not cause operational problems with ADSL2+, where capacitance variation across Tip and Ring is undesirable. Littelfuse SG Gas Discharge Tubes are extremely robust and are able to divert a 1000A pulse without destruction.

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Part #

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term

SG420
Littelfuse
1: S/3.54
2,525In Stock

Mfr. Part #
SG420

Mouser Part #
576-SG420

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V 2A GDT T/R 2 Term

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Datasheet

2,525In Stock

Cut Tape

S/3.54

S/2.95

S/2.63

S/2.52

S/2.46

Reel

S/2.43

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

420 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term

SG350
Littelfuse
1: S/5.57
1,995In Stock

Mfr. Part #
SG350

Mouser Part #
576-SG350

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V 2A GDT T/R 2 Term

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Datasheet

1,995In Stock

Cut Tape

S/5.57

S/4.24

S/3.51

S/3.25

Reel

S/2.48

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

350 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term

SG230
Littelfuse
1: S/5.57
2,343In Stock

Mfr. Part #
SG230

Mouser Part #
576-SG230

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 172-288V 2A GDT T/R 2 Term

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Datasheet

2,343In Stock

Cut Tape

S/5.57

S/4.24

S/3.52

S/3.24

S/2.95

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

230 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term

SG300
Littelfuse
1: S/5.02
12,035In Stock
2,000Expected 9/25/2026

Mfr. Part #
SG300

Mouser Part #
576-SG300

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 225-375V 2A GDT T/R 2 Term

Learn More

Datasheet

12,035In Stock

2,000Expected 9/25/2026

Cut Tape

S/5.02

S/3.82

S/3.17

S/2.98

S/2.89

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

300 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

SG350Q
Littelfuse
1: S/5.02
5,490In Stock
14,000Expected 9/29/2026

Mfr. Part #
SG350Q

Mouser Part #
576-SG350Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 263-437V GDT T/R 2 Term

Learn More

Datasheet

5,490In Stock

14,000Expected 9/29/2026

Cut Tape

S/5.02

S/3.82

S/3.17

S/2.98

S/2.89

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

350 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term

SG400
Littelfuse
1: S/5.02
4,016In Stock

Mfr. Part #
SG400

Mouser Part #
576-SG400

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 300-500V 2A GDT T/R 2 Term

Learn More

Datasheet

4,016In Stock

Cut Tape

S/5.02

S/3.82

S/3.80

S/3.25

S/3.04

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

1 kA

400 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term

SG90
Littelfuse
1: S/5.57
4,181In Stock
6,000Expected 10/28/2026

Mfr. Part #
SG90

Mouser Part #
576-SG90

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 63-117V 2A GDT T/R 2 Term

Learn More

Datasheet

4,181In Stock

6,000Expected 10/28/2026

Cut Tape

S/5.57

S/4.24

S/3.52

S/3.24

S/2.99

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

2 kA

90 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 52-98V 2A GDT T/R 2 Term

SG75
Littelfuse
1: S/5.29
1,255In Stock
30,000On Order

Mfr. Part #
SG75

Mouser Part #
576-SG75

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 52-98V 2A GDT T/R 2 Term

Learn More

Datasheet

1,255In Stock

30,000On Order

Cut Tape

S/5.29

S/4.05

S/3.36

S/3.16

S/2.97

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

2 kA

75 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

SG150
Littelfuse
1: S/5.29
3,982Expected 11/24/2026

Mfr. Part #
SG150

Mouser Part #
576-SG150

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 105-195V 2A GDT T/R 2 Term

Learn More

Datasheet

3,982Expected 11/24/2026

Cut Tape

S/5.29

S/4.05

S/3.36

S/3.16

S/2.97

Reel

S/2.79

MouseReel Available

Min.: 1
Mult.: 1

: 2,000

2 kA

150 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel, Cut Tape, MouseReel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 210-390V GDT T/R 2 Term

SG300Q
Littelfuse
2,000: S/2.79
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
SG300Q

Mouser Part #
576-SG300Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 210-390V GDT T/R 2 Term

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

S/2.79

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

: 2,000

1 kA

300 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V GDT T/R 2 Term

SG420Q
Littelfuse
2,000: S/3.00
Non-Stocked Lead-Time 17 Weeks

Mfr. Part #
SG420Q

Mouser Part #
576-SG420Q

Littelfuse

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 315-525V GDT T/R 2 Term

Learn More

Datasheet

Non-Stocked Lead-Time 17 Weeks

Reel

S/3.00

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

: 2,000

1 kA

420 V

2 Electrode

SMD/SMT

Failsafe Not Protected

4.5 mm

- 40 C

+ 90 C

Reel

SG Gas Discharge Tubes

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