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Pulse Power Components

ATI offers a wide variety of high voltage, high power components such as spark-gap switches, trigger generators, and rail-gap switches. We also offer a variety of high performance B-Dot and D-Dot probes and resistive voltage monitors.
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PULSED POWER COMPONENTS

High Voltage Spark Gap-Switches

Spark gap switches are characterized by several key electrical and mechanical performance parameters that determine their suitability for a given application. These include the operating voltage range, maximum peak current, maximum charge transfer per discharge, inductance, and design shot life. For optimal performance and minimum timing jitter, switches should generally be operated between 60% and 100% of their maximum rated voltage. The specified shot life is based on operation at maximum rated voltage, current, and charge transfer, though service life can often be extended by operating below these limits.
Switch performance is also influenced by operating conditions and triggering requirements. Full-voltage operation typically requires an external insulating environment such as SF₆ gas or mineral transformer oil, while dry internal dielectric gas and proper gas exchange are required for reliable operation. Internal gas pressure determines the switch’s voltage holdoff capability and must be selected according to the manufacturer’s pressure-versus-voltage guidelines. Proper trigger electrode biasing and a trigger pulse of opposite polarity, with an amplitude of approximately 70–100% of the maximum operating voltage and a fast rise time, are necessary to achieve the specified switching performance. The chart below summarizes these specifications for the available spark gap models.
Spark-Gap Switch Model No. Operating Voltage Range KV Max Peak Current KA Max Charge Transfer Inductance NH Action MJ/Ω  Design Shot Life (x 1000) at Full Rating Dimentions DIA. X HT (LxWxH)
Inches Millimeters

 

40264

 

25-100

 

100

 

0.3

 

<40

 

N/A

 

10

 

5.8 x 2.7

 

148 x 69

 

40265

 

25-100

 

100

 

0.15

 

<40

 

N/A

 

10

 

5.8 x 2.7

 

148 x 69

 

40302

 

10-120

 

1200

 

10

 

<20

 

N/A

 

5

 

19.6 X 7.7 X 7.8

 

498 x 196 x 198

 

40364

 

25-100

 

120

 

0.5

 

<40

 

N/A

 

10

 

5.8  x 2.7

 

148 x 69

 

40369

 

25-60

 

350

 

5

 

<100

 

N/A

 

10

 

10.5 x 9.9

 

267 x 252

 

40864

 

50-100

 

120

 

0.5

 

<40

 

N/A

 

10

 

5.8 x 2.7

 

148 x 69

 

40964

 

 15-50

 

35

 

0.3

 

<20

 

N/A

 

10

 

5.0 x 1.5

 

127 x 38

 

50264

 

50-200

 

100

 

0.1

 

<75

 

N/A

 

10

 

5.0 x 1.5

 

127 x 38

 

ST-300E

 

0-5 5

 

600

 

540

 

<200

 

135

 

160 kC

 

9 x 11.5

 

229 x 292

 

T-150

 

20-40

 

300

 

120

 

<70

 

16

 

40 kC

 

8 x 11

 

203 x 279

 

T-508

 

30-120

 

150

 

2

 

 ≈150

 

N/A

 

2

 

8 x 9

 

203 x 229

 

T-508A

 

60-200

 

150

 

2

 

≈150

 

N/A

 

2

 

8x9

 

203 x 229

 

T-508AX

 

60-200

 

150

 

2

 

≈150

 

N/A

 

2

 

8 x 9

 

203 x 229

 

Spark-Gap Switch Model No.  External Operating Environment External Dielectric Gas Internal Pressure Range PSIG Sea Level  Type Trigger Electrode Trigger Electrode Biasing Fig. No.  Jitter
Model 40168 Model 40268 Model 40151
40264 SF6, oil Syn. air 15-85 IRR V/2 1 <2 <1 N/A
40265 SF6, oil Syn. air  15-85 FD V/2 1 <5 <2 N/A
40302 Air, SF6, oil SF6 Argon/ Oxygen Argon 12-60 FD  V/2 or V/3 3 <5 <5 <2
40364 SF6, oil Syn. air 15-85 IRR V/2 1 <5 <1 N/A
40369 SF6, oil Syn. air 15-50 IRR/SC V/3 2 <7 <5 <5
40864 SF6, oil Syn. air 15-55 IRR V/2 1 <5 <1 N/A
40964 Air, SF6, oil Syn. air 5-50 IRR/SC V/3 5 <1 N/A N/A
50264 Air, SF6, oil Syn. air 10-30 IRR/SC V/3 5  - - -
ST-300E Air Dry Air 0-50 SI N/A 4 N/A N/A N/A
T-150 Air Dry Air 0-55 TIG N/A 8 N/A N/A N/A
T-508 SF6, oil  Syn. air or SF6 30 FD V/2 6 - - -
T-508A SF6, oil Syn. air or SF6 30 FD V/2 7 - - -
T-508AX SF6, oil Syn. air or SF6 30 FD V/2 7 - - -
AVAILABLE FILES

Library of Datasheets

If you'd like to dive deeper into the full specifications or explore each component in detail, simply click below to view the complete set of datasheets

Spark Gap Switches Brochure

Coming Soon

Specifications for the Model 40369 Spark-Gap Switch

Coming Soon

ST-300 High-Action Spark Gap Switch

Coming Soon

T-508 Datasheet

Coming Soon

PULSED POWER COMPONENTS

Model 40302 Rail-Gap Switch Specifications

Item

Parameter

Specification
 

Dimension

 

Length

19.6 in. (50 cm)

Active Switching Length

12 in. (30 cm)

Width

7.73 in. (20 cm)

Height

7.84 in. (20 cm)
 

External Operating Environment

 

Dielectric

Air, SF6 or oil

Temperature

60 to 100°F (15 to 38°C)

Altitude

0 to 8000 ft. (0 to 2500 m)

Relative Humidity

5 to 95 percent
 

Output

 

Voltage range

10 to 120 kV(a)

Maximum peak current

1.2 MA

Maximum charge transfer

10C

Inductance

20 nH

Jitter (1σ)

< 2.0 ns
 

Trigger

 

Amplitude (maximum)(b)

100 kV

Rate of rise (minimum)(c)

5 kV/ns
 

Dielectric Gas (25 to 120 kV Operation)

 

 

Grade

Instrument or better

Percent SF6

15% +0.5, -0.0 by volume

Percent argon

85% +0.0, -0.5 by volume

Impurities

 

 

 

< 5 ppm hydrocarbons by weight

<1000 ppm other impurities by weight

<5 ppm H2O by weight

<1 ppm hydrogen fluoride by weight

Filtration

No particulates > 5 microns
 

Dielectric Gas (10 to 30 kV Operation)(d)

 

Grade

Instrument or better

Percent oxygen

10% +1.0, -0.0 by volume

Percent argon

90% +0.0, -1.0 by volume

Impurities

 

 

 

 <5 ppm hydrocarbons by weight 

<1000 ppm other impurities by weight

<5 ppm H2O by weight

<1 ppm hydrogen fluoride by weight

Filtration

No particulates > 5 microns

 

Available Files

Library of Datasheets

If you'd like to dive deeper into the full specifications or explore each component in detail, simply click below to view the complete set of datasheets.

Model 40302 Rail-Gap Switch

Coming Soon

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