NAVY A-A-59781-2005 LIGHT EMITTING DIODES FOR USE AS INDICATOR LIGHTS《发光二极管应用为指示灯》.pdf
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1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to commandstandard
2、snavsea.navy.mil, with the subject line “Document Comment”. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. FSC 5980 INCH-POUND A-A-59781 25 October 2005 COMMERCIAL ITEM DESCRIPTION L
3、IGHT EMITTING DIODES FOR USE AS INDICATOR LIGHTS The General Services Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE. This Commercial Item Description (CID) covers the performance of solid-state light emitting diodes (LEDs) for use as in
4、dicator lights. The LEDs will provide indicator illumination in lieu of conventional incandescent indicator lamps. The form, fit and function of the LED will be comparable to the legacy incandescent lamps when being applied in retrofit applications. 2. CLASSIFICATION. The LEDs shall be designated in
5、 accordance with ANSI C79.1, MIL-DTL-3661, and MIL-DTL-6363 as specified (see 7.2). 3. SALIENT CHARACTERISTICS. 3.1 General requirements. 3.1.1 Materials. All materials used in the construction of the LED shall be suitable for a marine type environment. All metal parts of the LED shall be fabricated
6、 from corrosion-resistant materials or have a corrosion-resistant treatment. 3.1.1.1 Dissimilar metals. Contact of dissimilar metals shall be avoided. 3.1.1.2 Polarity. The LED shall be bipolar. The LED indicator shall operate whether or not the center contact is positively or negatively biased. The
7、 use of microelectronic components to achieve bipolarity is allowed so that the overall size of the LED does not exceed the dimensions of the legacy incandescent lamp the LED is replacing. 3.1.1.3 Color/chromaticity. LED colors shall be as specified (see 7.2) or in accordance with SAE-AS25050. Color
8、 matching shall be specified to match the color of the lens used with the legacy incandescent lamp. Each LED shall be provided with a colored band at the juncture of the base to lens denoting the color of the LED. Colors will be basic, solid, and permanent. Pastel coloring is not allowed. 3.1.1.4 Di
9、ffusion angle. The diffusion angle of the LED shall be 120 degrees or as specified (see 7.2) between the viewing angles of 10 through 120 degrees. 3.1.1.5 Illumination intensity. The illumination intensity of the LED shall be comparable to the incandescent indicator that the LED is replacing (see MI
10、L-DTL-3661 and MIL-DTL-6363 luminance requirements). Multiple chip LEDs are allowable to increase the intensity of an LED light source. 3.1.1.6 Power requirements. A replacement LED shall consume power equal to or less than the power of the incandescent lamp the LED is replacing. 3.1.2 Environmental
11、 conditions. The LED shall be designed for shipboard use in a marine type environment. Typical environmental tests include those tests identified in MIL-DTL-3661, MIL-DTL-6363 and MIL-STD-202. Actual environmental test requirements shall be as specified (see 7.2). Provided by IHSNot for ResaleNo rep
12、roduction or networking permitted without license from IHS-,-,-A-A-59781 23.1.2.1 Ambient temperature. The LED shall operate in an ambient temperature range of 0 F (-17.8 C) to 122 F (50 C). 3.1.2.2 Shock. When specified (see 7.2), the LED shall be designed to withstand the high impact shock tests f
13、or grade A, type A equipment in accordance with MIL-S-901. 3.1.2.3 Vibration. When specified (see 7.2), the LED shall be designed to withstand a Type I vibration test in accordance with MIL-STD-167-1. 3.1.2.4 Humidity. The LED shall be designed to operate in humidity from 0 to 100% relative. 3.1.2.5
14、 Electrostatic discharge. The LED should not be susceptible to electrostatic discharge (ESD) damage. 3.1.2.6 Salt spray (corrosion). When specified (see 7.2), salt spray tests shall be in accordance with MIL-DTL-3661 or MIL-DTL-6363. 3.1.2.7 Dimensions and tolerances. The LED dimensions shall be as
15、specified (7.2), or match the dimensions of the legacy incandescent indicators as shown in MIL-DTL-6363 specification sheets 0.002. 3.2 Performance. 3.2.1 Operating life/efficacy. The LED shall have a minimum operating life of 50,000 hours with 50% lumen maintenance factor applied and retain 80% of
16、its initial illumination levels after 30,000 hours of operation. 3.3 Maintenance. The LED shall require minimal effort for removal and replacement. 3.4 Electrical requirements. The LED shall be rated for the shipboard voltage specified (see 7.2); typical shipboard electrical power is 115-volt AC ung
17、rounded electrical service in accordance with MIL-STD-1399-300. The LED shall be designed such that the LED does not impose a ground upon the electrical power system from which it is energized. 3.4.1 Insulation resistance. The insulation resistance between all current-carrying and non-current-carryi
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