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VT400 参数 Datasheet PDF下载

VT400图片预览
型号: VT400
PDF下载: 下载PDF文件 查看货源
内容描述: 感光细胞和模拟光隔离器( Vactrols ) [Photoconductive Cells and Analog Optoisolators (Vactrols)]
分类和应用:
文件页数/大小: 76 页 / 1202 K
品牌: PERKINELMER [ PERKINELMER OPTOELECTRONICS ]
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Application Notes—Analog Optical Isolators  
The best policy is one which prevents tarnish from forming. Tarnish,  
2. The exact requirement of the cleaning process will vary from  
which is a compound formed when silver reacts with sulfur (Ag S), can  
customer to customer and application to application.  
2
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.  
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.  
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.  
Recommended  
Not Recommended  
Arklone A  
Arklone K  
Arklone F  
Acetone  
Carbon Tetrachloride  
Methyl Ethyl Ketone  
Methylene Chloride  
Trichloroethylene (TCE)  
Xylene  
Blaco-Tron DE-15  
Blaco-Tron DI-15  
Freon TE  
Freon TES  
Trichloroethane FC-111  
Trichloroethane FC-112  
Freon TF  
Freon TE-35  
Freon TP  
Freon TF-35  
Genesolv D  
Genesolv DE-15  
Genesolv DI-15  
Isopropyl Alcohol  
Water  
Freon TA  
Freon TMC  
Freon TMS  
Genesolv DA  
Genesolv DM  
Genesolv DMS  
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.  
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