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IP68BH Datasheet(PDF) 1 Page - AVAGO TECHNOLOGIES LIMITED |
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IP68BH Datasheet(HTML) 1 Page - AVAGO TECHNOLOGIES LIMITED |
1 / 2 page IPx6 Rated Surface Mount LED Application Note 5487 1. Introduction The LED has been used in variable-message signs and full- color display applications for years. Its popularity in such applications stems from the vibrant and wide color gamut that it produces, its long operating lifetime, and its ex- ceptional brightness which makes it suitable for outdoor viewing. The common LED package used in outdoor sign and display applications has typically been the through- hole package, due to its robust package design, high optical efficiency and shapeable radiation pattern. Thanks to the advancement of surface mount LED package design and materials in recent years, coupled with the progress in LED die efficiency, surface mount LED packaging can now deliver the required brightness for outdoor sign and display applications. In order to fully enable their potential for use in harsh outdoor environ- ments, Avago has developed a series of surface mount tricolor packages with high reliability and durability that fully satisfy the requirements for outdoor applica- tions. With our patented package design and proprietary material, these packages comply with IPX6 coding per IEC 60529 standard for protection against water. The objective of this Application Note is to provide users a general understanding of the IPX6 coding, its advantages as well as precautions needed when using these LEDs. 2. Reference Documents IEC 60529: Degree of protection provided by enclosure (IP Code) This standard provides a summarized definition of ingress protection (IP) code designations and the test require- ments with which a package must comply to qualify for a specific IP coding. 3. What is IP code? IP code is used to determine the degree of ingress pro- tection provided by an enclosure against solid foreign objects (first characteristic numeral), ingress of water (second characteristic numeral) and hazardous parts (additional letter). Since surface mount LED packages are a complete solid without air gap, the ingress of solid objects (such as dust or dirt) is of less concern. As such, this appli- cation note focuses mainly on the ingress of water within the surface mount package. 3.1 IP Code Delineation Supplementary Information Supplement letter (optional), with letters H, M, S, W -- Additional letter (optional), with letters A, B, C, D Protection against ingress of water with harmful effects Second characteristic numeral, with (numerals 0 to 8 or letter X) Protection against ingress of solid foreign object First characteristic numeral, with (numerals 0 to 6 or letter X) IP X X X X |
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