Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 11

Applied Filters:

Peak Pulse Current

DC Sparkover

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

SG420
Littelfuse
1: $1.87
2,595In Stock

Mfr. Part #
SG420

Mouser Part #
576-SG420

Littelfuse

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

Learn More

Datasheet

2,595In Stock

Cut Tape

$1.87

$1.66

$1.54

$1.30

View

Reel

$0.893

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 172-288V 2A GDT T/R 2 Term

SG230
Littelfuse
1: $2.13
3,255In Stock

Mfr. Part #
SG230

Mouser Part #
576-SG230

Littelfuse

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

Learn More

Datasheet

3,255In Stock

Cut Tape

$2.13

$1.94

$1.66

$1.23

View

Reel

$0.937

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 263-437V GDT T/R 2 Term

SG350Q
Littelfuse
1: $2.26
3,994In Stock
6,000Expected 2026-06-25

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

3,994In Stock

6,000Expected 2026-06-25

Cut Tape

$2.26

$1.89

$1.74

$1.43

View

Reel

$0.937

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 52-98V 2A GDT T/R 2 Term

SG75
Littelfuse
1: $2.20
5,910In Stock
6,000Expected 2026-05-25

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

5,910In Stock

6,000Expected 2026-05-25

Cut Tape

$2.20

$1.89

$1.70

$1.43

View

Reel

$0.937

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 63-117V 2A GDT T/R 2 Term

SG90
Littelfuse
1: $2.06
6,764In Stock

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

6,764In Stock

Cut Tape

$2.06

$1.87

$1.63

$1.40

View

Reel

$0.937

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 105-195V 2A GDT T/R 2 Term

SG150
Littelfuse
1: $2.26
1,711In Stock

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

1,711In Stock

Cut Tape

$2.26

$1.83

$1.70

$1.40

View

Reel

$0.937

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 225-375V 2A GDT T/R 2 Term

SG300
Littelfuse
1: $2.26
160In Stock
10,000On Order

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

160In Stock

10,000On Order

Cut Tape

$2.26

$1.89

$1.74

$1.43

View

Reel

$0.937

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 2A GDT T/R 2 Term

SG350
Littelfuse
1: $2.22
2,000In Stock

Mfr. Part #
SG350

Mouser Part #
576-SG350

Littelfuse

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

Learn More

Datasheet

2,000In Stock

Cut Tape

$2.22

$1.89

$1.74

$1.43

View

Reel

$0.937

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: $2.26
1,516In 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

1,516In Stock

Cut Tape

$2.26

$1.89

$1.74

$1.43

View

Reel

$0.937

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 210-390V GDT T/R 2 Term

SG300Q
Littelfuse
2,000: $0.937
Non-Stocked Lead-Time 12 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 12 Weeks

Reel

$0.937

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: $0.937
Non-Stocked Lead-Time 12 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 12 Weeks

Reel

$0.937

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

Mouser Electronics®

Company

Resources

Support