About Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors

Gas Discharge Tubes (GDTs) or Gas Plasma Arrestors protect circuits from transient voltages caused by lightning, switching, and other sources. They allow the passage of AC currents but act as a short circuit for high-energy transients. Essentially, they provide a conductive path for the discharge of high voltage transients, while preserving the normal DC voltage. GDTs are low-cost and provide a simple and effective solution for protecting sensitive electronic equipment. They are an essential component of any system which is subject to high voltage surges or transients, such as in lightning storms or when high power is switched on or off. GDTs are typically constructed using a glass or ceramic tube, containing two electrodes. The gas inside is usually a mixture of noble gases such as argon, neon, and xenon. When a high voltage transient occurs, the gap between the electrodes breaks down and a low impedance path is formed which allows the transient to be discharged to ground. GDTs provide a range of advantages such as high dielectric strength, low operating voltage, and low leakage current.

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Image	Stock Code(▲▼)	Description	Manufacturer	Availability ⓘ (▲▼)	Price(AUD) (Ex. GST)(▲▼)	Enter Qty	Peak Pulse Current	DC Breakover Voltage (Nominal)	Number of Electrodes	Series	Termination Style	Failsafe Protection Y/N	Packaging	Diameter	DC Sparkover	Length	Minimum Operating Temperature	Maximum Operating Temperature

BK12005002-P

Discharge Tubes (GDT/TSS) RoHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Yageo

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3343

Multiples of: 1

SF90-90X

5kA ±20% 2pF 350V 3 SMD,5x7.6mm Gas Discharge Tube (GDT) ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

SURGING

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3348

Multiples of: 5

SMD5050-1000

SMD

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Ruilongyuan

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.336

Multiples of: 5

2RL250L-5

Discharge Tubes (GDT/TSS) RoHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Yageo

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.336

Multiples of: 1

SE252A-L

5kA 20% 2.5kV 2 Plugin,8x6mm Gas Discharge Tube (GDT) ROHS
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This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

SETfuse

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3362

Multiples of: 1

BK32005002-MH

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 1000V 20% 0.5KA SPG SMD BK3-MH
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Yageo

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3375

Multiples of: 1

SE351H-L

20kA 20% 350V 2 Plugin,D8xL6mm Gas Discharge Tube Arresters (GDT) ROHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

SETfuse

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3382

Multiples of: 5

8-2R1000L

Axial Leaded Gas Discharge Tube (GDT) ROHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

SEMBO

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3393

Multiples of: 1

3SPC090F

5kA ±20% 90V 3 5x7.6MM Gas Discharge Tube (GDT) ROHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Juxing Electronic Technology

0
6 to 16 Weeks

July 2026

July 2026
	S	M	T	W	T	F	S
27	28	29	30	1	2	3	4
28	5	6	7	8	9	10	11
29	12	13	14	15	16	17	18
30	19	20	21	22	23	24	25
31	26	27	28	29	30	31	1
32	2	3	4	5	6	7	8

AUD 0.3424

Multiples of: 5

B5G600L

Plugin,D5.5xL6mm Gas Discharge Tube (GDT) ROHS
Icon ROHS

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges.

Bencent

0
6 to 16 Weeks

July 2026