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CV2203 hydrogen thyratron

Size This valve measures 270x98mm overall (70mm across glass) and has three leads.


Heater voltage 2.5V
Heater current 27.5A
Max peak anode voltage 16.0kV
Max peak anode current 200A
Max negative DC grid voltage -70V
Max trigger pulse voltage 190V
Min trigger pulse length 4µs
Max source impedance 500 ohms
Max pulse length 5µs
Max duty cycle 0.001
Max rate of rise of current 750A/µs
Min cathode heating time 2 mins
Max de-ionisation time 75µs
Ambient temperature range -50 to +90C

The black lead is heater and cathode, yellow is heater and white is the grid; TC is anode.

Top quartew view Bottom quarter view