High Voltage Thyratrons

The TDI-series of cold-cathode grounded grid thyratrons provides a unique high current, high charge transfer capability with superior time stability and is currently employed for emerging pulsed power applications with peak power up to hundreds of megawatt due to easy assembling in parallel layout.
The TPI-series of cold hollow cathode thyratrons with ceramic/metal envelope, featuring sub-nanosecond jitter, low firing time and jitter. Suitable for switching high power at moderate and high pulse repetition rates in a variety of high peak power applications. Absence of a thermionic cathode facilitates application of the switches in circuits with both electrodes und high or transient voltages.

TDI Series:

  • up to 150 kV
  • up to 200 kA peak
  • up to 41 kJ peak per shot

TPI Series:

  • up to 100 kV
  • up to 10 kA peak
  • up to 0.5 A average

TGI Series:

  • up to 75 kV
  • up to 10 kA peak
  • up to 30 A average

Thyratron Driver:

  • For TDI Series
  • For TPI Series
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TDI Series Pseudospark Switches

ModelPk. Anode VoltagePk. Anode CurrentAnode current Pulse DurationPk. Engery per shot
TDI1-50k/1620 kV 70 kA100 µsec2 kJ
TDI1-50k/3545 kV70 kA100 µsec2 kJ
TDI1-50k/2525 kV100 kA100 µsec15 kJ
TDI1-50k/5050 kV100 kA100 µsec15 kJ
TDI1-200k/2525 kV200 kA500 µsec40 kJ
TDI4-100k/4545 kV150 kA100 µsec20 kJ
TDI4-150k/5050 kV200 kA500 µsec40 kJ
TDI4-100k/7575 kV100 kA100 µsec15 kJ
TDI1-100k/150150 kV100 kA100 µsec15 kJ

TPI Series Pseudospark Switches

ModelPk. Anode VoltagePk. Anode CurrentAnode current Pulse DurationAverage Current
TPI1-0.2k/1215 kV1 kA10 µsec0.15 A
TPI1-1k/2025 kV3 kA10 µsec0.15 A
TPI1-1k/3540 kV3 kA10 µsec0.15 A
TPI1-10k/2028 kV10 kA10 µsec0.5 A
TPI1-10k/5060 kV10 kA10 µsec0.5 A
TPI1-10k/7580 kV10 kA10 µsec0.5 A
TPI1-5k/100100 kV5 kA10 µsec0.1 A

Thermionic Cathode Thyratrons

ModelAnode voltagePeak Anode CurrentAverage Anode Current
TGI1-0.5k/20 Triode 1-gap5 - 25 kV0.5 kA0.5 A
TGI2-0.5k/25Triode 1-gap5 - 25 kV1 kA 1 A
TGI1-3k/30Triode 1-gap1 - 30 kV3 kA 3 A
TGI2-3k/30Tetrode 1-gap1 - 30 kV3 kA 3 A
TGI1-5k/50Triode 1-gap2 - 50 kV5 kA 3 A
TGI2-5k/50Tetrode 2-gap2 - 50 kV5 kA 3 A
TGI2-10k/50Tetrode 2-gap5 - 50 kV10 kA10 / 30 A
TGI2-5k/75Tetrode 3-gap5 - 75 kV5 kA 3 A

Thyratron Drivers

Models ApplicationOutputs (Trigger)Heater
PB-3DTDI-thyratrons4 - 6 kV negativeReservoir 4-7 V
PB-5PTPI-thyratronsGrid 1 DC primingReservoir 3.5-7.5 V
Grid 1 pulse 2 kV
Grid 2 pulse 4 kV
PB-7HTGI-thyratronsGrid 1 DC primingReservoir 3-7.5 V
Grid 2 pulse 2 kV