MN 26-0.12-1 (E10)

Which parameters define its operation?

The model combines useful local light with a 2,500-hour reference service life. This makes it appropriate for assemblies where the lamp remains on for extended periods and replacement access is limited. The electrical rating should be considered together with light output and operating duty. Overvoltage raises filament temperature and will normally shorten service life.

How is the lamp constructed and installed?

The bulb diameter is approximately 12 mm and the overall length is about 24 mm. The E10/13 screw base allows routine socket replacement. The suffix -1 remains part of the exact model designation. Before installation, compare bulb diameter, overall clearance and the exact connection method. The lamp must not be forced into an unsuitable holder, loaded through the glass envelope or fitted by changing the original mounting arrangement.

Where is this execution used?

Lamps in this group are used for local indication and illumination inside compact instruments, annunciators and illuminated controls. Installation in a particular aircraft, helicopter, panel or instrument must be confirmed by the applicable parts list or equipment documentation. The SMN or MN family name alone does not establish aircraft applicability.

How should the correct lamp be selected?

Verify the full MN 26-0.12-1 marking, 26 V circuit, 0.12 A current and E10 socket. The lower-voltage MN 13.5-0.16 may look similar but has a different electrical rating and shorter reference life. Related products on the card help compare nearby executions in the same narrow subgroup; they do not establish automatic interchangeability. An enquiry should include the marking of the removed lamp, circuit voltage, holder or lead type and the required quantity.