SMK 28-1.4-1
Red aircraft lamp
Description
Purpose
SMK 28-1.4-1 is an incandescent lamp intended for red indication in compact aircraft panel fittings. Its red-coated glass envelope provides the required colored signal without an external filter. The exact designation matters because adjacent SM and SMK versions may use different bases, dimensions and electrical ratings.
Full descriptionCollapse description
Electrical rating
The nominal supply is 28 V; the stated rating is 1.4 W. The published service-life value is 200 h. Red light through a colored envelope. These are identification values for the specified version, not a basis for replacing another lamp that merely looks similar.
Construction
The lamp combines a tungsten filament, a colored glass envelope and a S6s/10. Its dimensional description is: 5.5 mm bulb diameter; 17.2 mm length. The colored coating or colored glass is part of the optical function. Chips, deep scratches, discoloration, loose internal parts or damaged contacts are reasons to reject the lamp before installation.
Selection and installation
Before ordering, compare the full designation, nominal voltage, electrical rating, base and available installation space with the aircraft equipment documentation. Fit the lamp only with the circuit isolated. Do not force the base into an incompatible holder, and keep the glass clean. Similar-looking clear, mirrored and colored aircraft lamps are not automatically interchangeable.
Ordering
Order SMK 28-1.4-1 by its complete designation. If it is being selected for an installed instrument or luminaire, provide the equipment designation or maintenance reference so the interface can be checked. Related products are listed in Aircraft Lamps. The operating principle is described in the incandescent lamp reference.
Technical details
- Product type
- Red aircraft lamp
- Designation
- SMK 28-1.4-1
- Nominal voltage
- 28 V
- Electrical rating
- 1.4 W
- Base
- S6s/10
All specificationsCollapse specifications
- Dimensions
- 5.5 mm bulb diameter; 17.2 mm length
- Rated life
- 200 h
- Optical characteristic
- Red light through a colored envelope
- Envelope
- red-coated glass envelope
- Light source
- Tungsten filament
- Application
- red indication in compact aircraft panel fittings
- Operating position
- Any, subject to equipment documentation
- Selection
- By complete designation, voltage, rating, base and dimensions
- Installation
- With the electrical circuit isolated
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms