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VTL5C1 Datasheet(PDF) 73 Page - PerkinElmer Optoelectronics |
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VTL5C1 Datasheet(HTML) 73 Page - PerkinElmer Optoelectronics |
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73 / 76 page  68 Application Notes—Analog Optical Isolators The best policy is one which prevents tarnish from forming. Tarnish, which is a compound formed when silver reacts with sulfur (Ag2S), can be prevented by keeping the components away from sulfur or sulfur compounds. Since two major sources of sulfur are room air and paper products, it is best to store the devices in protective packaging such as a “silver saver” paper or tightly sealed polyethylene bags. After soldering, it is necessary to clean the components to remove any rosin and ionic residues. For a listing of recommended cleaning agents please refer to Application Notes #3. APPLICATION NOTE #3 Recommended Cleaning Agents The construction of an AOI consists of a cast epoxy LED, ceramic photocell, a molded case and epoxy as the end fill. This construction allows a wide variety of cleaning agents to be sued after soldering. In many cases the devices will be exposed to a post solder cleaning operation which uses one or more solvents to remove the residual solder flux and ionic contaminants. Only certain cleaning solvents are compatible with the plastics used in the AOI packages. This listing of recommended/not recommended solvents represents only a very small percentage of available chemical cleaning agents. Even with this list of recommended solvents it is important to be aware that: 1. Solvent exposure times should be as short as possible. 2. The exact requirement of the cleaning process will vary from customer to customer and application to application. 3. Additives and concentrations will vary from supplier to supplier. Because of these uncertainties, our recommendation is that all customers carefully evaluate their own cleaning process and draw their own conclusions about the effectiveness and reliability of the process. PerkinElmer cannot assume any responsibility for damage caused by the use of any of the solvents above or any other solvents used in a cleaning process. Recommended Not Recommended Arklone A Acetone Arklone K Carbon Tetrachloride Arklone F Methyl Ethyl Ketone Blaco-Tron DE-15 Methylene Chloride Blaco-Tron DI-15 Trichloroethylene (TCE) Freon TE Xylene Freon TES Trichloroethane FC-111 Freon TE-35 Trichloroethane FC-112 Freon TP Freon TF Freon TF-35 Freon TA Genesolv D Freon TMC Genesolv DE-15 Freon TMS Genesolv DI-15 Genesolv DA Isopropyl Alcohol Genesolv DM Water Genesolv DMS |
Similar Part No. - VTL5C1 |
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Similar Description - VTL5C1 |
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