The NL5441A is a regular sized nixie tube. It is the smooth-topped version of the NL5441. It has become very popular as the tube to use in divergence meters: Its size is about right, it has a decimal point and a smooth top, like the tubes used in the anime Steins;Gate. This is one example.
| Digit size | 15.5mm |
| Min current | 1.5mA |
| Max current | 3.0mA |
Compatible tubes: B5441A