| Min supply voltage * | 125V |
| Max cathode current ** | 5.0mA |
| Min cathode current ** | 0.5mA |
| Max vibration: 100 hours duration | 5g |
| Max vibration: 10 mins duration | 20g |
| Max shock (short duration) | 500g |
| Max operating bulb temperature | 85°C |
| Max operating ambient temperature range | -60 to +70C |
| Max storage ambient temperature range | -60 to +70C |
| Characteristics and typical operating conditions |
| Nom maintaining voltage | 84.5V |
| Optimum cathode current | 1.5mA |
| Max incremental resistance | 1200 ohms |
| Typical incremental resistance | 850 ohms |
| Temperature coefficient of maintaining voltage, bulb -60 to +25°C | -10mV/°C max, -5mV/°C typical |
| Temperature coefficient of maintaining voltage, bulb +25 to +85°C | -7mV/°C max, -3mV/°C typical |
| Typical drift in maintaining voltage: 0 to 200 hours | +0.2V |
| 200 to 1000 hours | +0.1V |
| 1000 to 3000 hours | ±0.05V |
