Spark Gaps
We produce a range of specialised two- and three-electrode spark gaps and trigger transformers. These were originally developed for specific customer applications, but we also offer bespoke solutions.
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Filter Results
GX2001 Series
The GX2001 Series of two-electrode spark gaps are gas discharge tubes, hermetically sealed in a ceramic/metal envelope. Tubes with a DC breakdown voltage in the standard range 10 to 50 kV are available. Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GX2001-200 has a DC breakdown voltage capability of 20 kV. For voltages above 40 Kv it is recommended that the device is immersed in insulating fluid.
Typical Applications
- Single-shot pulse generators
- Voltage surge protection circuits
- Protection of modulator components
- High peak current protection
- High energy switches
- Transmitter protection
GXY Series
The GXY Series of two-electrode spark gaps are gas discharge tubes, hermetically sealed in a ceramic/metal envelope. Tubes with a DC breakdown voltage in the range 3 to 30 kV are available. Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GXY60 has a 6 kV DC breakdown voltage. For voltages above 40 Kv it is recommended that the device is immersed in insulating fluid.
Typical Applications
- Single-shot pulse generators
- Voltage surge protection circuits
- High energy switches
GXH Series
The GXH Series of two-electrode spark gaps are gas discharge tubes, hermetically sealed in a glass/metal envelope. Tubes with a DC breakdown voltage in the range 250 V to 10 kV are available. Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GXH60 has a 6 kV DC breakdown voltage.
The GXHP range is specifically for protection applications as indicated by suffix (P).
GXH and GXHP series devices can be supplied with one CT2 connector (identified by C suffix).
Typical Applications
- Single-shot pulse generators
- Voltage surge protection circuits
- Turbine engine ignition circuits
- Medical lithotripsy
- High energy switches
Our three-electrode spark gaps are fire-on-command devices. These comprise hermetically sealed gas-filled switches and are available with DC hold-off voltages ranging from 5 to 50 kV. Three-electrode spark gap applications include medical lithotripsy, crowbar circuits, high di/dt switches for laser firing and high energy switches.
GXG Series
The GXG Series of triggered three-electrode spark gaps are gas discharge tubes, hermetically sealed in a ceramic/metal envelope. Tubes with a DC hold-off voltage in the standard range 15 to 50 kV are available. Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GXG350L has a 35 kV DC hold-off voltage capability. The operational voltage range for the GXG Series is 40% to 80% of DC hold-off voltage.
Typical Applications
- Medical lithotripsy
- Crowbar circuits
- High di/dt switching
- High voltage switches for laser firing
- High energy switches
GX3500 Series
The GX3500 Series of triggered three-electrode spark gaps are gas discharge tubes, hermetically sealed in a ceramic/metal envelope for use in air. Tubes with a DC hold-off voltage in the standard range 15 to 50 kV are available. Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GX3500-400 has a 40 kV DC hold-off voltage capability. The operational voltage range for the GX3500 Series is 40% to 80% of DC hold-off voltage.
Typical Applications
- Crowbar circuits for high power travelling wave tubes, power klystrons and similar devices
- High voltage switches for laser firing
- General switching applications GXT Series
GXT/ GXTC Series
The GXT Series of triggered three-electrode spark gaps are gas discharge tubes, hermetically sealed in a ceramic/metal envelope. Tubes with a DC hold-off voltage in the standard range 5 to 38 kV are available.
Device breakdown voltage is signified by numerals (expressed in hundreds of volts) following the series type identifier: e.g. GXT250B has a 25 kV DC hold-off voltage capability. The operational voltage range for the GXT/ GXTC Series is 40% to 80% of DC hold-off voltage. For voltages above 10 Kv it is recommended that a GXT spark gap is immersed in insulating fluid or that a GXTC spark gap is used.
Typical Applications
- Medical lithotripsy
- Crowbar circuits
- High di/dt switching
- High voltage switches for laser firing
- High energy switches
- General switching applications
Our trigger transformers are used to provide a fast high voltage pulse. This high voltage pulse is applied to the third (trigger) electrode to initiate switching action in the three-electrode spark gaps.
Our standard range of trigger transformers are designed to provide fast rise-time pulses, typically up to 30kV/µs, for triggering three-electrode spark gaps.
Four types of trigger transformer are available, each with its own selective features. Either positive or negative pulses can be obtained from all of the transformers depending on how the primary winding is connected.
Literature
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