| Filament voltage | 2.5V |
| Filament current | 21A |
| Max peak forward voltage | 1.5kV |
| Max PIV | 1.5kV |
| Max peak anode current | 80A |
| Max mean anode current (averaged over 15 secs max) | 6.4A |
| Max surge anode current (0.1 sec max) | 1000A |
| Max grid voltage before conduction | 250V |
| Max grid voltage during conduction | -10V |
| Max peak grid current with anode negative | 25mA |
| Max mean grid current with anode positive | 200mA |